<?xml version="1.0" encoding="UTF-8" ?>
<?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>Nishadi's Activities</title><link>https://communities.bentley.com/members/28ac08e6_2d00_6d9e_2d00_452c_2d00_b296_2d00_a12d192a8071</link><description>Nishadi's recent activity</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>Pond Initial Water Level</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/246812/pond-initial-water-level</link><pubDate>Thu, 22 Jun 2023 07:25:49 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:34c5d61f-0814-41f8-bb03-d3938aba56c8</guid><dc:creator>Nishadi</dc:creator><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;I&amp;#39;m simulating a network with a pond+POS&amp;nbsp; both in explicit and implicit solver. In explicit solver simulation, in the results the pond initial water level is not showing correctly while in implicit solver it shows correctly.&lt;/p&gt;
&lt;p&gt;what could be the reason for this&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;BR&lt;/p&gt;
&lt;p&gt;Nishadi&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Sewergems get automatically closed with out any message for a particular scenario.</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/246688/sewergems-get-automatically-closed-with-out-any-message-for-a-particular-scenario</link><pubDate>Mon, 19 Jun 2023 18:11:27 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:02346365-36d8-45b5-93f3-45aa64d88626</guid><dc:creator>Nishadi</dc:creator><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;I&amp;#39;m simulating few scenarios&amp;nbsp; in Sewergem (storm water network) model. There is a scenario which I start to simulate, the software get automatically closed with out any error message.&lt;/p&gt;
&lt;p&gt;it completes the processing stage. Once the calculation window occur, at 00:00, it automatically closed. How can I fix this? (I&amp;#39;m simulating explicit solver)&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;BR&lt;/p&gt;
&lt;p&gt;Nishadi&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Highest Continuity error in POS</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/246604/highest-continuity-error-in-pos</link><pubDate>Fri, 16 Jun 2023 18:33:53 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:162d107c-9f6a-484d-8512-490ed6f783e7</guid><dc:creator>Nishadi</dc:creator><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;My drainage network simulated in Sewergems Explicit solver is consist with Ponds and POS. I&amp;#39;m getting not converging %, more than 5%. It gives unstable flow results. When I check the report summary, it shows higher continuity error in POS. Is there any way to figure our out how to fix this ?. I have tried reducing the simulation time step, but didn&amp;#39;t work.&lt;/p&gt;
&lt;p&gt;(I&amp;#39;m getting the&amp;nbsp;warning &amp;quot;The composite outlet structure EQT has one or more headwater elevations with reverse flow conditions.&amp;nbsp; Calculated reverse flow may be approximate&amp;quot;, I believe this is not an issue.)&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;BR&lt;/p&gt;
&lt;p&gt;Nishadi&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Manhole Attribute Table</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/246536/manhole-attribute-table</link><pubDate>Thu, 15 Jun 2023 08:07:58 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:d047a9e4-982e-417f-b2f7-ff593e9f288a</guid><dc:creator>Nishadi</dc:creator><description>&lt;p&gt;&lt;/p&gt;
&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;When I check the manhole attribute table, it shows blank table as shown in the figure. How can I fix this?&amp;nbsp;&lt;/p&gt;
&lt;p&gt;(this is happening for existing models as well as newly created one.) rest of the components (Channels, cs) are visible in the attribute table.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/resized-image/__size/640x480/__key/communityserver-components-multipleuploadfilemanager/a4e3e8f0_2D00_8fc3_2D00_4c52_2D00_856a_2D00_b246f3547229-423864-complete/CatchmentClarification.JPG" data-uw-rm-ima="un" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/resized-image/__size/640x480/__key/communityserver-discussions-components-files/5925/4606.Manhole.JPG" data-uw-rm-ima="un" /&gt;&lt;/p&gt;
&lt;p&gt;BR&lt;/p&gt;
&lt;p&gt;Nishadi&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Catchment Inflow (WET) collection</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/246379/catchment-inflow-wet-collection</link><pubDate>Mon, 12 Jun 2023 04:44:45 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:48d6c06c-a101-48dd-b0ca-aff8242535ab</guid><dc:creator>Nishadi</dc:creator><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;I&amp;#39;m having following arrangement in my model.&lt;/p&gt;
&lt;p&gt;CM 3 and CM1 is flowing to O2 and CM2 is assigned to O1 and simulated the model.&lt;/p&gt;
&lt;p&gt;in the second scenario, I want to assign the the inflow time series&amp;nbsp;of O2 to CM 2 as a Inflow (WET) collection.&lt;/p&gt;
&lt;p&gt;my question is, in the&amp;nbsp;Second&amp;nbsp;scenario, does it count the time of concentration of catchment CM2 for the the flow time series assigned&amp;nbsp;as&amp;nbsp;&lt;span&gt;Inflow (WET) collection&lt;/span&gt;&amp;nbsp;to reach O1?&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/resized-image/__size/640x480/__key/communityserver-discussions-components-files/5925/CatchmentClarification.JPG" data-uw-rm-ima="un" /&gt;&lt;/p&gt;
&lt;p&gt;BR&lt;/p&gt;
&lt;p&gt;Nishadi&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Explicit Solver limitations</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/246260/explicit-solver-limitations</link><pubDate>Thu, 08 Jun 2023 02:30:02 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:131f49a4-f1fb-4709-b896-e7716208bc5a</guid><dc:creator>Nishadi</dc:creator><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;I am simulating a stormwater network (in sewergems) where I have channels, conduits, manholes, Ponds (3 nos), POS, Pumps. I can not simulate this in Implicit solver (as it takes hours and giving unstable results).&lt;/p&gt;
&lt;p&gt;When I simulate in Explicit solver, seems it does not gives accurate results for the conduits. how much I increase the rainfall, the HGL does not exceed the manhole ring level. I just did a trial by increasing the manhole ring level by 1 m and then HGL reaching that ring elevation (or in between elevation. How can I adjust this issue?&lt;/p&gt;
&lt;p&gt;BR&lt;/p&gt;
&lt;p&gt;Nishadi&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Results instability- Explicit Solver</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/246302/results-instability--explicit-solver</link><pubDate>Thu, 08 Jun 2023 17:30:05 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:5f9acb1e-7cc8-41c3-a427-b1f09670a701</guid><dc:creator>Nishadi</dc:creator><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;I&amp;#39;m simulating a storm network in sewergems platform. My network is connecting with a pond and the variation of&amp;nbsp; HGL of the pond and the U/S node of the incoming&amp;nbsp;channel is shown below.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;I&amp;#39;m using explicit solver, with&amp;nbsp; 6 sec routing time step with Slot surcharge method. what can be the reason for this nature of instability in the model?&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/resized-image/__size/640x480/__key/communityserver-discussions-components-files/5925/Instability.JPG" data-uw-rm-ima="un" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;BR&lt;/p&gt;
&lt;p&gt;Nishadi&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>POS- Tailwater Type</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/245893/pos--tailwater-type</link><pubDate>Mon, 29 May 2023 10:21:02 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:baadb703-407c-4dde-9f23-dab8e70ac9d2</guid><dc:creator>Nishadi</dc:creator><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;My network is having interconnected ponds and a outfall.&lt;/p&gt;
&lt;p&gt;Arrangement is as shown in the below figure. For POSs, I have assigned weirs.&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img style="max-height:202px;max-width:548px;" alt=" " height="202" src="/resized-image/__size/1096x404/__key/communityserver-discussions-components-files/5925/POS_2D00_Clarification.JPG" width="548" data-uw-rm-ima="un" /&gt;&lt;/p&gt;
&lt;p&gt;My question is ,&amp;nbsp; is it correct if I set the tailwater type for POS-1 to interconnected ponds and Tailwater type for POS-2 to free outfall?&lt;/p&gt;
&lt;p&gt;Or for both cases, can I set it (Tailwater type) to free outfall?&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;Thanks and Regards&lt;/p&gt;
&lt;p&gt;Nishadi&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Channel Cross section</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/245550/channel-cross-section</link><pubDate>Fri, 19 May 2023 10:41:36 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:3c62e1c4-6671-4482-8eb2-a54cab1b3f70</guid><dc:creator>Nishadi</dc:creator><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;My network is having following arrangement (MH 1 upstream; O-1 is D/S).&lt;/p&gt;
&lt;p&gt;As I&amp;#39;m aware, the upstream cross section governs the cross section of D/S channel. When there is a MH as the starting point of a channel, what is the channel section that is being considered for downstream channel? (ex for channel CH-1 what is the cross section considered.&lt;/p&gt;
&lt;p&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/resized-image/__size/640x480/__key/communityserver-discussions-components-files/5925/Network.JPG" data-uw-rm-ima="un" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;Thanks and Regards&lt;/p&gt;
&lt;p&gt;Nishadi&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Editing X-Y coordinates in Flex Table</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/244282/editing-x-y-coordinates-in-flex-table</link><pubDate>Mon, 17 Apr 2023 10:45:59 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:ebc58a11-4a08-4b31-ad9d-0715f20e86d0</guid><dc:creator>Nishadi</dc:creator><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;I need to updated X-Y coordinates of my cross sections in the flex table.&lt;/p&gt;
&lt;p&gt;Though it is possible to change coordinates of individual CS, it is not possible to do it in flex table. How can I&amp;nbsp;change coordinates of set of CS in one go?&lt;/p&gt;
&lt;p&gt;Thanks &amp;amp; Regards&lt;/p&gt;
&lt;p&gt;Nishadi&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Rectify issue in Explicit Solver</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/243153/rectify-issue-in-explicit-solver</link><pubDate>Tue, 21 Mar 2023 06:31:56 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:9e8efa0f-5751-4378-9791-8f67fa797718</guid><dc:creator>Nishadi</dc:creator><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;I&amp;#39;m simulating a drainage network in SewerGEMS. The network consist with open channels, closed conduits, pond, pump,&amp;nbsp;POS(no control structure).&lt;/p&gt;
&lt;p&gt;when I simulate the model in Explicit and implicit solvers, I&amp;#39;m getting two different profiles as shown in the figure. error seems to be in Explicit Solver (jump in EGL).&lt;/p&gt;
&lt;p&gt;(I have set Routing time step and SWMM output increment to 1 min in Explicit solver with Slot surcharge method). Further, the runoff method is SCS CN method.&lt;/p&gt;
&lt;p&gt;Any advice that I can fix this issue in the explicit solver? (As I have to simulate it in Explicit Solver)&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;Thanks&lt;/p&gt;
&lt;p&gt;Nishadi&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/resized-image/__size/640x480/__key/communityserver-discussions-components-files/5925/ExplicitSolver.JPG" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/resized-image/__size/640x480/__key/communityserver-discussions-components-files/5925/2146.ImplicitSolver.JPG" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>SWMM Control</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/242266/swmm-control</link><pubDate>Tue, 28 Feb 2023 18:32:19 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:bddf1635-7830-4d4e-b507-5239ced42681</guid><dc:creator>Nishadi</dc:creator><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;I&amp;#39;m simulating a stormwater network&amp;nbsp; where I have a pond. in the pond outlet channel I need to introduce a stop control structure and assign a&amp;nbsp;orifice gate where I can&amp;nbsp;open/close it with SWWM control set&amp;nbsp;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;using pond water level. My issue is , in SWMM control set, how should I introduce(keyword) the pond? (as it is not a node).&lt;/p&gt;
&lt;p&gt;Thanks and Regards&lt;/p&gt;
&lt;p&gt;Nishadi&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Culvert Losses</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/242220/culvert-losses</link><pubDate>Tue, 28 Feb 2023 04:22:19 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:6480486a-f5e8-4596-b1c7-0c1bf64a658c</guid><dc:creator>Nishadi</dc:creator><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;I am simulating open channel flow network in Sewergems ( in Explicit (SWMM Solvers).&lt;/p&gt;
&lt;p&gt;I have installed&amp;nbsp;culverts in my network.&amp;nbsp;I need to introduce culvert head loss to the network. Below is the way I have represented in the model. appreciate your opinion on the best way of incorporating the culvert loss&lt;/p&gt;
&lt;p&gt;into the model.&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img style="max-height:240px;max-width:320px;" alt=" " src="/resized-image/__size/640x480/__key/communityserver-components-multipleuploadfilemanager/bfad91d7_2D00_6816_2D00_4782_2D00_a251_2D00_26b9e37391f9-423864-complete/Culverts.JPG" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;Thanks Regard&lt;/p&gt;
&lt;p&gt;Nishadi&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Simulating in Explicit Solver</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/239772/simulating-in-explicit-solver</link><pubDate>Wed, 21 Dec 2022 00:35:02 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:7ab3f3da-af9f-435b-97ff-55005c57a939</guid><dc:creator>Nishadi</dc:creator><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;I&amp;#39;m simulating my model in explicit solver and I have set the SWMM output increment to 0.1 hr. Then when I go for profile simulation, always my profile start with 0.1 hr. Is it possible to change it to Zero?&lt;/p&gt;
&lt;p&gt;BR&lt;/p&gt;
&lt;p&gt;Nishadi&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Critical Storm Event Analysis</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/239711/critical-storm-event-analysis</link><pubDate>Mon, 19 Dec 2022 17:33:30 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:b1989300-f4a8-4c90-bdd9-ee4250865f5a</guid><dc:creator>Nishadi</dc:creator><description>&lt;p&gt;Hello,&lt;/p&gt;
&lt;p&gt;I&amp;#39;m simulating a drainage network in SewerGEMS. In my network, when I calculate the time of concentration, it comes as 30 min. So I created my design storm for 30 min event since runoff will be maximum when the duration of rainfall is equal to the time of concentration.&lt;/p&gt;
&lt;p&gt;Since I wanted to show the same in modelling perspective, I used 20 min, 30 min and 1 hr event and created three scenarios. Then I used Critical storm analysis option and selected Maximum HGL option.&lt;/p&gt;
&lt;p&gt;But in the results, I always got the highest duration event as the critical event.(20 min,30 min and 1 hr set , critical event is 1 hr. And&amp;nbsp;&lt;span&gt;20 min,30 min ,1 hr and 2 hr set,&amp;nbsp; critical event is&amp;nbsp;2 hr event). Have I missed anything here? Shouldn&amp;#39;t it be the rainfall event with time of concentration is the critical R/F event?&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Thanks and Regards&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Nishadi&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>