Water Quality Transport Modeling with SMS


Application:Riverine Modeling
Method:1D/2D Finite Element
Developer:U.S. Army Corp of Engineers


Why RMA4 with SMS?
SMS provides a custom interface to the RMA4 model offering a simple way to set model parameters and a graphical user interface to run the model and visualize the results. Gather background data from a variety of sources from GIS to CAD and access online data from numerous databases of maps, images, and elevation data. SMS allows you to interact with models in true 3D taking advantage of optimized OpenGL graphics and to create photo-realistic renderings and animations for PowerPoint, print, and web presentations.

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RMA4 Description:
RMA4 is part of the TABS-MD suite of programs and is used for tracking constituent flow in 2D models. RMA4 can be applied to represent the transport of a contaminant or salinity intrusion in a system. RMA4 can only be run after having initially run a hydrodynamic solution. Currently, SMS only interfaces RMA4 with a solution file from RMA2. Because RMA4 is tracking the transport or a constituent, it is by its nature a dynamic model.. RMA4 uses the flow solutions to compute the constituent concentration as it flows through the mesh. The initial hydrodynamic solution computed by RMA2 can be either steady state or dynamic. RMA4 will utilize a steady state solution repetitively, or can loop through a portion of a dynamic solution repeately to simulate the transport over time.