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<?xml-stylesheet type="text/xsl" href="https://communities.bentley.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"><channel><title>FSI Analysis of a Hydroelectric Power Plant</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/64435/fsi-analysis-of-a-hydroelectric-power-plant</link><description /><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>FSI Analysis of a Hydroelectric Power Plant</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/64435/fsi-analysis-of-a-hydroelectric-power-plant</link><pubDate>Thu, 16 Feb 2023 14:49:04 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:5d276436-51fd-4052-9a05-dfe9a99ddc8b</guid><dc:creator>Juan Trueba</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/64435/fsi-analysis-of-a-hydroelectric-power-plant#comments</comments><description>Current Revision posted to RAM | STAAD | ADINA Wiki by Juan Trueba on 2/16/2023 2:49:04 PM&lt;br /&gt;
&lt;table style="margin-left:auto;margin-right:auto;"&gt;
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&lt;tr&gt;
&lt;td width="366"&gt;&lt;img style="display:block;margin-left:auto;margin-right:auto;max-height:337px;max-width:252px;" alt=" " height="337" src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1676558901378v2.gif" width="252" /&gt;&lt;/td&gt;
&lt;td width="323"&gt;&lt;img style="max-height:368px;max-width:204px;" alt=" " height="368" src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1676558906938v3.gif" width="204" /&gt;&lt;/td&gt;
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&lt;/tbody&gt;
&lt;/table&gt;
&lt;p class="headFont" align="center"&gt;&lt;strong&gt;FSI Analysis of a Hydroelectric Power Plant&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;Hydroelectric power plants are used for economic and environmentally friendly electric power generation all around the world. One of the technical challenges in the design of such structures is to consider the fluid-structure interaction effects. For example, when the water pressure fluctuates as it passes through the fluid passage and the hydraulic turbine, it creates a pulsatile loading that causes vibration of the powerhouse structure.&lt;/p&gt;
&lt;p&gt;In this Brief, we present some results of a study dealing with the vibrations of a powerhouse structure due to the fluid-structure interaction, obtained using ADINA. Figure 1 depicts a schematic of the powerhouse structure, the fluid passage and the turbine. Figure 2 shows the finite element model of the fluid-structure coupled system. The nonlinear transient response of the coupled system was solved using 3000 implicit integration time steps, with a time step of 0.002 seconds (see Ref).&lt;/p&gt;
&lt;p&gt;The fluid was modeled as a Navier-Stokes fluid. The turbulent behavior of the fluid was modeled using the shear stress transport (SST) model. The sliding mesh boundary condition was used to incorporate the large rotations of the turbine blades.&lt;/p&gt;
&lt;p align="center"&gt;&lt;img style="max-height:350px;max-width:350px;" alt=" " src="/resized-image/__size/700x700/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v3.jpeg" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 1&lt;/b&gt;&amp;nbsp;&amp;nbsp;Schematic of the powerhouse&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;img style="max-height:400px;max-width:450px;" alt=" " src="/resized-image/__size/900x800/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v4.jpeg" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 2&lt;/b&gt;&amp;nbsp;&amp;nbsp;Finite element mesh of the (a) powerhouse structure (b) turbine (c) fluid&lt;/p&gt;
&lt;p align="center"&gt;&lt;br /&gt;&lt;img style="max-height:400px;max-width:350px;" alt=" " src="/resized-image/__size/700x800/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v5.jpeg" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 3&lt;/b&gt;&amp;nbsp;&amp;nbsp;Velocity vector plots (left) and nodal pressure contour plots (right) in the fluid at t = 4.80 s&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p&gt;Figure 3 shows velocity vector and pressure contour plots in the fluid model at the time = 4.80 s.&lt;/p&gt;
&lt;p&gt;The movies at the top show the z-displacement contour plot of the powerhouse structure, and its time-dependent deformed shape due to the pressure loading from the fluid.&lt;/p&gt;
&lt;p&gt;The movie below shows the contour plot of the pressure in the fluid.&lt;/p&gt;
&lt;p align="center"&gt;&lt;img style="max-height:350px;max-width:350px;" alt=" " src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v6.gif" /&gt;&lt;br /&gt;&lt;b&gt;Figure 4&lt;/b&gt;&lt;span&gt;&amp;nbsp;&amp;nbsp;Fluid pressure contour&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;This case study shows some of the powerful capabilities of ADINA for solving practical fluid-structure interaction problems. For an overview of the fluid-structure interaction analysis capabilities, please visit our &lt;a title="CFD and&amp;nbsp;Fluid-structure interaction" href="/products/ram-staad/w/structural_analysis_and_design__wiki/64285/computational-fluid-dynamics"&gt;CFD and&amp;nbsp;Fluid-structure interaction&lt;/a&gt;&amp;nbsp;page.&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Reference&lt;/b&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;S. Wei, L. Zhang, &amp;quot;Vibration analysis of hydropower house based on fluid-structure coupling numerical method&amp;quot;&amp;rdquo;,&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;em&gt;Water Science and Engineering&lt;/em&gt;, 3(1): 75-84, 2010&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;i&gt;Keywords:&lt;/i&gt;&lt;br /&gt;Hydroelectric power, fluid-structure interaction, FSI, hydraulic turbine, draft tube, powerhouse structure, vibration, sliding mesh, shear stress transport (SST), transient dynamic&lt;/p&gt;
&lt;p&gt;&lt;i&gt;Courtesy of Shu-he Wei and Liao-jun Zhang, College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, P.R. China&lt;/i&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: water, hydroelectric, ADINA, CFD, Energy, FSI, Fluid-Structure Interaction&lt;/div&gt;
</description></item><item><title>FSI Analysis of a Hydroelectric Power Plant</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/64435/fsi-analysis-of-a-hydroelectric-power-plant/revision/5</link><pubDate>Thu, 16 Feb 2023 14:47:49 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:5d276436-51fd-4052-9a05-dfe9a99ddc8b</guid><dc:creator>Juan Trueba</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/64435/fsi-analysis-of-a-hydroelectric-power-plant#comments</comments><description>Revision 5 posted to RAM | STAAD | ADINA Wiki by Juan Trueba on 2/16/2023 2:47:49 PM&lt;br /&gt;

&lt;table style="margin-left:auto;margin-right:auto;"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td width="366"&gt;&lt;img style="display:block;margin-left:auto;margin-right:auto;max-height:337px;max-width:252px;" height="337" src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1676558901378v2.gif" width="252" alt=" " /&gt;&lt;/td&gt;
&lt;td width="323"&gt;&lt;img style="max-height:368px;max-width:204px;" height="368" src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1676558906938v3.gif" width="204" alt=" " /&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p class="headFont" align="center"&gt;&lt;strong&gt;FSI Analysis of a Hydroelectric Power Plant&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;Hydroelectric power plants are used for economic and environmentally friendly electric power generation all around the world. One of the technical challenges in the design of such structures is to consider the fluid-structure interaction effects. For example, when the water pressure fluctuates as it passes through the fluid passage and the hydraulic turbine, it creates a pulsatile loading that causes vibration of the powerhouse structure.&lt;/p&gt;
&lt;p&gt;In this Brief, we present some results of a study dealing with the vibrations of a powerhouse structure due to the fluid-structure interaction, obtained using ADINA. Figure 1 depicts a schematic of the powerhouse structure, the fluid passage and the turbine. Figure 2 shows the finite element model of the fluid-structure coupled system. The nonlinear transient response of the coupled system was solved using 3000 implicit integration time steps, with a time step of 0.002 seconds (see Ref).&lt;/p&gt;
&lt;p&gt;The fluid was modeled as a Navier-Stokes fluid. The turbulent behavior of the fluid was modeled using the shear stress transport (SST) model. The sliding mesh boundary condition was used to incorporate the large rotations of the turbine blades.&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p align="center"&gt;&lt;img style="max-height:350px;max-width:350px;" alt=" " src="/resized-image/__size/700x700/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v3.jpeg" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 1&lt;/b&gt;&amp;nbsp;&amp;nbsp;Schematic of the powerhouse&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;img style="max-height:400px;max-width:450px;" alt=" " src="/resized-image/__size/900x800/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v4.jpeg" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 2&lt;/b&gt;&amp;nbsp;&amp;nbsp;Finite element mesh of the (a) powerhouse structure (b) turbine (c) fluid&lt;/p&gt;
&lt;p align="center"&gt;&lt;br /&gt;&lt;img style="max-height:400px;max-width:350px;" alt=" " src="/resized-image/__size/700x800/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v5.jpeg" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 3&lt;/b&gt;&amp;nbsp;&amp;nbsp;Velocity vector plots (left) and nodal pressure contour plots (right) in the fluid at t = 4.80 s&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p&gt;Figure 3 shows velocity vector and pressure contour plots in the fluid model at the time = 4.80 s.&lt;/p&gt;
&lt;p&gt;The movies at the top show the z-displacement contour plot of the powerhouse structure, and its time-dependent deformed shape due to the pressure loading from the fluid.&lt;/p&gt;
&lt;p&gt;The movie below shows the contour plot of the pressure in the fluid.&lt;/p&gt;
&lt;p align="center"&gt;&lt;img style="max-height:350px;max-width:350px;" alt=" " src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v6.gif" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p&gt;This case study shows some of the powerful capabilities of ADINA for solving practical fluid-structure interaction problems. For an overview of the fluid-structure interaction analysis capabilities, please visit our &lt;a title="CFD and&amp;nbsp;Fluid-structure interaction" href="/products/ram-staad/w/structural_analysis_and_design__wiki/64285/computational-fluid-dynamics"&gt;CFD and&amp;nbsp;Fluid-structure interaction&lt;/a&gt;&amp;nbsp;page.&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Reference&lt;/b&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;S. Wei, L. Zhang, &amp;quot;Vibration analysis of hydropower house based on fluid-structure coupling numerical method&amp;quot;&amp;rdquo;,&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;em&gt;Water Science and Engineering&lt;/em&gt;, 3(1): 75-84, 2010&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;i&gt;Keywords:&lt;/i&gt;&lt;br /&gt;Hydroelectric power, fluid-structure interaction, FSI, hydraulic turbine, draft tube, powerhouse structure, vibration, sliding mesh, shear stress transport (SST), transient dynamic&lt;/p&gt;
&lt;p&gt;&lt;i&gt;Courtesy of Shu-he Wei and Liao-jun Zhang, College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, P.R. China&lt;/i&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: water, hydroelectric, ADINA, CFD, Energy, FSI, Fluid-Structure Interaction&lt;/div&gt;
</description></item><item><title>FSI Analysis of a Hydroelectric Power Plant</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/64435/fsi-analysis-of-a-hydroelectric-power-plant/revision/4</link><pubDate>Thu, 16 Feb 2023 14:41:57 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:5d276436-51fd-4052-9a05-dfe9a99ddc8b</guid><dc:creator>Juan Trueba</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/64435/fsi-analysis-of-a-hydroelectric-power-plant#comments</comments><description>Revision 4 posted to RAM | STAAD | ADINA Wiki by Juan Trueba on 2/16/2023 2:41:57 PM&lt;br /&gt;
&lt;table style="margin-left:auto;margin-right:auto;"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td&gt;&lt;img style="max-height:276px;max-width:206px;" alt=" " height="276" src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017591v1.gif" width="206" /&gt;&lt;/td&gt;
&lt;td&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;/td&gt;
&lt;td&gt;&lt;img style="max-height:260px;max-width:144px;" alt=" " height="260" src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v2.gif" width="144" /&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&amp;nbsp;&lt;/td&gt;
&lt;td&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;/td&gt;
&lt;td align="center"&gt;Displacement (magnified)&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p class="headFont" align="center"&gt;&lt;strong&gt;FSI Analysis of a Hydroelectric Power Plant&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;Hydroelectric power plants are used for economic and environmentally friendly electric power generation all around the world. One of the technical challenges in the design of such structures is to consider the fluid-structure interaction effects. For example, when the water pressure fluctuates as it passes through the fluid passage and the hydraulic turbine, it creates a pulsatile loading that causes vibration of the powerhouse structure.&lt;/p&gt;
&lt;p&gt;In this Brief, we present some results of a study dealing with the vibrations of a powerhouse structure due to the fluid-structure interaction, obtained using ADINA. Figure 1 depicts a schematic of the powerhouse structure, the fluid passage and the turbine. Figure 2 shows the finite element model of the fluid-structure coupled system. The nonlinear transient response of the coupled system was solved using 3000 implicit integration time steps, with a time step of 0.002 seconds (see Ref).&lt;/p&gt;
&lt;p&gt;The fluid was modeled as a Navier-Stokes fluid. The turbulent behavior of the fluid was modeled using the shear stress transport (SST) model. The sliding mesh boundary condition was used to incorporate the large rotations of the turbine blades.&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p align="center"&gt;&lt;img style="max-height:350px;max-width:350px;" alt=" " src="/resized-image/__size/700x700/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v3.jpeg" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 1&lt;/b&gt;&amp;nbsp;&amp;nbsp;Schematic of the powerhouse&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;img style="max-height:400px;max-width:450px;" alt=" " src="/resized-image/__size/900x800/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v4.jpeg" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 2&lt;/b&gt;&amp;nbsp;&amp;nbsp;Finite element mesh of the (a) powerhouse structure (b) turbine (c) fluid&lt;/p&gt;
&lt;p align="center"&gt;&lt;br /&gt;&lt;img style="max-height:400px;max-width:350px;" alt=" " src="/resized-image/__size/700x800/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v5.jpeg" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 3&lt;/b&gt;&amp;nbsp;&amp;nbsp;Velocity vector plots (left) and nodal pressure contour plots (right) in the fluid at t = 4.80 s&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p&gt;Figure 3 shows velocity vector and pressure contour plots in the fluid model at the time = 4.80 s.&lt;/p&gt;
&lt;p&gt;The movies at the top show the z-displacement contour plot of the powerhouse structure, and its time-dependent deformed shape due to the pressure loading from the fluid.&lt;/p&gt;
&lt;p&gt;The movie below shows the contour plot of the pressure in the fluid.&lt;/p&gt;
&lt;p align="center"&gt;&lt;img style="max-height:350px;max-width:350px;" alt=" " src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v6.gif" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p&gt;This case study shows some of the powerful capabilities of ADINA for solving practical fluid-structure interaction problems. For an overview of the fluid-structure interaction analysis capabilities, please visit our &lt;a title="CFD and&amp;nbsp;Fluid-structure interaction" href="/products/ram-staad/w/structural_analysis_and_design__wiki/64285/computational-fluid-dynamics"&gt;CFD and&amp;nbsp;Fluid-structure interaction&lt;/a&gt;&amp;nbsp;page.&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Reference&lt;/b&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;S. Wei, L. Zhang, &amp;quot;Vibration analysis of hydropower house based on fluid-structure coupling numerical method&amp;quot;&amp;rdquo;,&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;em&gt;Water Science and Engineering&lt;/em&gt;, 3(1): 75-84, 2010&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;i&gt;Keywords:&lt;/i&gt;&lt;br /&gt;Hydroelectric power, fluid-structure interaction, FSI, hydraulic turbine, draft tube, powerhouse structure, vibration, sliding mesh, shear stress transport (SST), transient dynamic&lt;/p&gt;
&lt;p&gt;&lt;i&gt;Courtesy of Shu-he Wei and Liao-jun Zhang, College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, P.R. China&lt;/i&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: water, hydroelectric, ADINA, CFD, Energy, FSI, Fluid-Structure Interaction&lt;/div&gt;
</description></item><item><title>FSI Analysis of a Hydroelectric Power Plant</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/64435/fsi-analysis-of-a-hydroelectric-power-plant/revision/3</link><pubDate>Wed, 08 Feb 2023 15:23:56 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:5d276436-51fd-4052-9a05-dfe9a99ddc8b</guid><dc:creator>Juan Trueba</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/64435/fsi-analysis-of-a-hydroelectric-power-plant#comments</comments><description>Revision 3 posted to RAM | STAAD | ADINA Wiki by Juan Trueba on 2/8/2023 3:23:56 PM&lt;br /&gt;
&lt;table style="margin-left:auto;margin-right:auto;"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017591v1.gif" /&gt;&lt;/td&gt;
&lt;td&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;/td&gt;
&lt;td&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v2.gif" /&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&amp;nbsp;&lt;/td&gt;
&lt;td&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;/td&gt;
&lt;td align="center"&gt;Displacement (magnified)&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p class="headFont" align="center"&gt;&lt;strong&gt;FSI Analysis of a Hydroelectric Power Plant&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;Hydroelectric power plants are used for economic and environmentally friendly electric power generation all around the world. One of the technical challenges in the design of such structures is to consider the fluid-structure interaction effects. For example, when the water pressure fluctuates as it passes through the fluid passage and the hydraulic turbine, it creates a pulsatile loading that causes vibration of the powerhouse structure.&lt;/p&gt;
&lt;p&gt;In this Brief, we present some results of a study dealing with the vibrations of a powerhouse structure due to the fluid-structure interaction, obtained using ADINA. Figure 1 depicts a schematic of the powerhouse structure, the fluid passage and the turbine. Figure 2 shows the finite element model of the fluid-structure coupled system. The nonlinear transient response of the coupled system was solved using 3000 implicit integration time steps, with a time step of 0.002 seconds (see Ref).&lt;/p&gt;
&lt;p&gt;The fluid was modeled as a Navier-Stokes fluid. The turbulent behavior of the fluid was modeled using the shear stress transport (SST) model. The sliding mesh boundary condition was used to incorporate the large rotations of the turbine blades.&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p align="center"&gt;&lt;img style="max-height:240px;max-width:350px;" alt=" " src="/resized-image/__size/700x480/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v3.jpeg" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 1&lt;/b&gt;&amp;nbsp;&amp;nbsp;Schematic of the powerhouse&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;img style="max-height:240px;max-width:350px;" alt=" " src="/resized-image/__size/700x480/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v4.jpeg" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 2&lt;/b&gt;&amp;nbsp;&amp;nbsp;Finite element mesh of the (a) powerhouse structure (b) turbine (c) fluid&lt;/p&gt;
&lt;p align="center"&gt;&lt;br /&gt;&lt;img style="max-height:218px;max-width:350px;" alt=" " src="/resized-image/__size/700x436/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v5.jpeg" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 3&lt;/b&gt;&amp;nbsp;&amp;nbsp;Velocity vector plots (left) and nodal pressure contour plots (right) in the fluid at t = 4.80 s&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p&gt;Figure 3 shows velocity vector and pressure contour plots in the fluid model at the time = 4.80 s.&lt;/p&gt;
&lt;p&gt;The movies at the top show the z-displacement contour plot of the powerhouse structure, and its time-dependent deformed shape due to the pressure loading from the fluid.&lt;/p&gt;
&lt;p&gt;The movie below shows the contour plot of the pressure in the fluid.&lt;/p&gt;
&lt;p align="center"&gt;&lt;img style="max-height:240px;max-width:350px;" alt=" " src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v6.gif" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p&gt;This case study shows some of the powerful capabilities of ADINA for solving practical fluid-structure interaction problems. For an overview of the fluid-structure interaction analysis capabilities, please visit the following page:&amp;nbsp;&lt;a href="/products/ram-staad/w/structural_analysis_and_design__wiki/64285/computational-fluid-dynamics"&gt;Fluid-structure interaction&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;br /&gt;&lt;b&gt;Reference&lt;/b&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;S. Wei, L. Zhang, &amp;quot;Vibration analysis of hydropower house based on fluid-structure coupling numerical method&amp;quot;&amp;rdquo;,&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;em&gt;Water Science and Engineering&lt;/em&gt;, 3(1): 75-84, 2010&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;br /&gt;&lt;i&gt;Keywords:&lt;/i&gt;&lt;br /&gt;Hydroelectric power, fluid-structure interaction, FSI, hydraulic turbine, draft tube, powerhouse structure, vibration, sliding mesh, shear stress transport (SST), transient dynamic&lt;/p&gt;
&lt;p&gt;&lt;i&gt;Courtesy of Shu-he Wei and Liao-jun Zhang, College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, P.R. China&lt;/i&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: water, hydroelectric, ADINA, CFD, Energy, FSI, Fluid-Structure Interaction&lt;/div&gt;
</description></item><item><title>FSI Analysis of a Hydroelectric Power Plant</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/64435/fsi-analysis-of-a-hydroelectric-power-plant/revision/2</link><pubDate>Mon, 06 Feb 2023 14:11:24 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:5d276436-51fd-4052-9a05-dfe9a99ddc8b</guid><dc:creator>Juan Trueba</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/64435/fsi-analysis-of-a-hydroelectric-power-plant#comments</comments><description>Revision 2 posted to RAM | STAAD | ADINA Wiki by Juan Trueba on 2/6/2023 2:11:24 PM&lt;br /&gt;
&lt;table style="margin-left:auto;margin-right:auto;"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017591v1.gif" /&gt;&lt;/td&gt;
&lt;td&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;/td&gt;
&lt;td&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v2.gif" /&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&amp;nbsp;&lt;/td&gt;
&lt;td&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;/td&gt;
&lt;td align="center"&gt;Displacement (magnified)&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p class="headFont" align="center"&gt;&lt;strong&gt;FSI Analysis of a Hydroelectric Power Plant&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;Hydroelectric power plants are used for economic and environmentally friendly electric power generation all around the world. One of the technical challenges in the design of such structures is to consider the fluid-structure interaction effects. For example, when the water pressure fluctuates as it passes through the fluid passage and the hydraulic turbine, it creates a pulsatile loading that causes vibration of the powerhouse structure.&lt;/p&gt;
&lt;p&gt;In this Brief, we present some results of a study dealing with the vibrations of a powerhouse structure due to the fluid-structure interaction, obtained using ADINA. Figure 1 depicts a schematic of the powerhouse structure, the fluid passage and the turbine. Figure 2 shows the finite element model of the fluid-structure coupled system. The nonlinear transient response of the coupled system was solved using 3000 implicit integration time steps, with a time step of 0.002 seconds (see Ref).&lt;/p&gt;
&lt;p&gt;The fluid was modeled as a Navier-Stokes fluid. The turbulent behavior of the fluid was modeled using the shear stress transport (SST) model. The sliding mesh boundary condition was used to incorporate the large rotations of the turbine blades.&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p align="center"&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/resized-image/__size/640x480/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v3.jpeg" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 1&lt;/b&gt;&amp;nbsp;&amp;nbsp;Schematic of the powerhouse&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/resized-image/__size/640x480/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v4.jpeg" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 2&lt;/b&gt;&amp;nbsp;&amp;nbsp;Finite element mesh of the (a) powerhouse structure (b) turbine (c) fluid&lt;/p&gt;
&lt;p align="center"&gt;&lt;br /&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/resized-image/__size/640x480/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v5.jpeg" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 3&lt;/b&gt;&amp;nbsp;&amp;nbsp;Velocity vector plots (left) and nodal pressure contour plots (right) in the fluid at t = 4.80 s&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p&gt;Figure 3 shows velocity vector and pressure contour plots in the fluid model at the time = 4.80 s.&lt;/p&gt;
&lt;p&gt;The movies at the top show the z-displacement contour plot of the powerhouse structure, and its time-dependent deformed shape due to the pressure loading from the fluid.&lt;/p&gt;
&lt;p&gt;The movie below shows the contour plot of the pressure in the fluid.&lt;/p&gt;
&lt;p align="center"&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v6.gif" /&gt;&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p&gt;This case study shows some of the powerful capabilities of ADINA for solving practical fluid-structure interaction problems. For an overview of the fluid-structure interaction analysis capabilities, please visit the following page:&amp;nbsp;&lt;a href="/products/ram-staad/w/structural_analysis_and_design__wiki/64285/computational-fluid-dynamics"&gt;Fluid-structure interaction&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;br /&gt;&lt;b&gt;Reference&lt;/b&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;S. Wei, L. Zhang, &amp;quot;Vibration analysis of hydropower house based on fluid-structure coupling numerical method&amp;quot;&amp;rdquo;,&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;em&gt;Water Science and Engineering&lt;/em&gt;, 3(1): 75-84, 2010&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;br /&gt;&lt;i&gt;Keywords:&lt;/i&gt;&lt;br /&gt;Hydroelectric power, fluid-structure interaction, FSI, hydraulic turbine, draft tube, powerhouse structure, vibration, sliding mesh, shear stress transport (SST), transient dynamic&lt;/p&gt;
&lt;p&gt;&lt;i&gt;Courtesy of Shu-he Wei and Liao-jun Zhang, College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, P.R. China&lt;/i&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: water, hydroelectric, ADINA, CFD, Energy, FSI, Fluid-Structure Interaction&lt;/div&gt;
</description></item><item><title>FSI Analysis of a Hydroelectric Power Plant</title><link>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/64435/fsi-analysis-of-a-hydroelectric-power-plant/revision/1</link><pubDate>Mon, 06 Feb 2023 14:03:50 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:5d276436-51fd-4052-9a05-dfe9a99ddc8b</guid><dc:creator>Juan Trueba</dc:creator><comments>https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/64435/fsi-analysis-of-a-hydroelectric-power-plant#comments</comments><description>Revision 1 posted to RAM | STAAD | ADINA Wiki by Juan Trueba on 2/6/2023 2:03:50 PM&lt;br /&gt;
&lt;table style="margin-left:auto;margin-right:auto;"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td&gt;&lt;img style="max-height:240px;max-width:320px;" src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017591v1.gif" alt=" " /&gt;&lt;/td&gt;
&lt;td&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;/td&gt;
&lt;td&gt;&lt;img style="max-height:240px;max-width:320px;" src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v2.gif" alt=" " /&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;&amp;nbsp;&lt;/td&gt;
&lt;td&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;/td&gt;
&lt;td align="center"&gt;Displacement (magnified)&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p class="headFont" align="center"&gt;&lt;strong&gt;FSI Analysis of a Hydroelectric Power Plant&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;Hydroelectric power plants are used for economic and environmentally friendly electric power generation all around the world. One of the technical challenges in the design of such structures is to consider the fluid-structure interaction effects. For example, when the water pressure fluctuates as it passes through the fluid passage and the hydraulic turbine, it creates a pulsatile loading that causes vibration of the powerhouse structure.&lt;/p&gt;
&lt;p&gt;In this Brief, we present some results of a study dealing with the vibrations of a powerhouse structure due to the fluid-structure interaction, obtained using ADINA. Figure 1 depicts a schematic of the powerhouse structure, the fluid passage and the turbine. Figure 2 shows the finite element model of the fluid-structure coupled system. The nonlinear transient response of the coupled system was solved using 3000 implicit integration time steps, with a time step of 0.002 seconds (see Ref).&lt;/p&gt;
&lt;p&gt;The fluid was modeled as a Navier-Stokes fluid. The turbulent behavior of the fluid was modeled using the shear stress transport (SST) model. The sliding mesh boundary condition was used to incorporate the large rotations of the turbine blades.&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p align="center"&gt;&lt;img style="max-height:240px;max-width:320px;" src="/resized-image/__size/640x480/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v3.jpeg" alt=" " /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 1&lt;/b&gt;&amp;nbsp;&amp;nbsp;Schematic of the powerhouse&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p align="center"&gt;&lt;img style="max-height:240px;max-width:320px;" src="/resized-image/__size/640x480/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v4.jpeg" alt=" " /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 2&lt;/b&gt;&amp;nbsp;&amp;nbsp;Finite element mesh of the (a) powerhouse structure (b) turbine (c) fluid&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p align="center"&gt;&lt;img style="max-height:240px;max-width:320px;" src="/resized-image/__size/640x480/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v5.jpeg" alt=" " /&gt;&lt;br /&gt;&lt;br /&gt;&lt;b&gt;Figure 3&lt;/b&gt;&amp;nbsp;&amp;nbsp;Velocity vector plots (left) and nodal pressure contour plots (right) in the fluid at t = 4.80 s&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p&gt;Figure 3 shows velocity vector and pressure contour plots in the fluid model at the time = 4.80 s.&lt;/p&gt;
&lt;p&gt;The movies at the top show the z-displacement contour plot of the powerhouse structure, and its time-dependent deformed shape due to the pressure loading from the fluid.&lt;/p&gt;
&lt;p&gt;The movie below shows the contour plot of the pressure in the fluid.&lt;/p&gt;
&lt;p align="center"&gt;&lt;img style="max-height:240px;max-width:320px;" src="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-54/pastedimage1675692017592v6.gif" alt=" " /&gt;&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p&gt;This case study shows some of the powerful capabilities of ADINA for solving practical fluid-structure interaction problems. For an overview of the fluid-structure interaction analysis capabilities, please visit the following page:&amp;nbsp;&lt;a href="/products/ram-staad/w/structural_analysis_and_design__wiki/64285/computational-fluid-dynamics"&gt;Fluid-structure interaction&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;br /&gt;&lt;b&gt;Reference&lt;/b&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;S. Wei, L. Zhang, &amp;quot;Vibration analysis of hydropower house based on fluid-structure coupling numerical method&amp;quot;&amp;rdquo;,&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;em&gt;Water Science and Engineering&lt;/em&gt;, 3(1): 75-84, 2010&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;br /&gt;&lt;i&gt;Keywords:&lt;/i&gt;&lt;br /&gt;Hydroelectric power, fluid-structure interaction, FSI, hydraulic turbine, draft tube, powerhouse structure, vibration, sliding mesh, shear stress transport (SST), transient dynamic&lt;/p&gt;
&lt;p&gt;&lt;i&gt;Courtesy of Shu-he Wei and Liao-jun Zhang, College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, P.R. China&lt;/i&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;
</description></item></channel></rss>