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OpenFlows FLOOD can couple 1D hydraulic models made with CivilStorm and SewerGEMS by selecting the stsw file extension. This file is not present once modeling using modeling tools integrated with OpenRoads Designer, where all data is stores within a DGN file.
In this wiki article you will learn how to generate the stsw file having the DGN file only. The stsw file is a file extension handled by the standalone versions of the OpenFlows Storm and Sewer modeling tools, such as SewerGEMS and CivilStorm, and it stores the drawing information of the network, and it works connected with other file extensions, such as the sqlite (database), dwh, etc.
As of the version 10.03.01.01 of OpenFlows FLOOD, its 1D model connector requires the .stsw, dwh and sqlite files, and it’s not able to read the DGN file directly.
To generate a stsw we can run CivilStorm or SewerGEMS from its standalone plataform and load the DGN file.
Once loading the hydraulic model, user can save the model choosing the stsw file extension.
As an example, let’s take the case presented in the video below where a stormwater network was modeled using CivilStorm/SewerGEMS integrated with OpenRoads Designer.
Model’s current scenario runs a 6 hours simulation using the Explicit Solver - SWMM (needed to be coupled to OpenFlows FLOOD).
The first step is to open the DGN file that has the hydraulic model and open it using the StandAlone platform of CivilStorm or SewerGEMS. Be aware of the version compatibility between CivilStorm/SewerGEMS and OpenRoads.
Start CivilStorm/SewerGEMS and select “Open Hydraulic Model” from the Welcome Dialog, or select File > Open and change the file format file to “MicroStation DGN”.
You will be prompted to select the the Design Model where the Hydraulic Model is stored into the DGN file. Once loaded the model, select File > Save As to generate the set of files (stsw, dwh, sqlite). The video below shows an example of application.
Having the stsw, dwh and sqlite created, you can couple the hydraulic model to a simulation run. See our learning resources to learn how run the hole process of modeling with OpenFlows FLOOD.
OpenFlows FLOOD Learning Resources