SMS:RMA2 Graphical Interface

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The RMA2 graphical interface includes tools to assist with creating, editing, and debugging a RMA2 model. The TABS (RMA2) interface exists in the Mesh module. SMS can visualize and create RMA2 projects, easily modify project parameters, and view the solutions produced by the RMA2 model.

Below are links describing the SMS interface that interacts with the RMA2 model.

Model Control

The RMA2 Model Control dialog is used to setup the options that apply to the simulation as a whole. These options include time controls (steady state/dynamic), run types, output options, global parameters, print options and other global settings.

Boundary Conditions

All numeric models require boundary condition data. Boundary conditions in RMA2 include flows in/out of the model domain or known water surface elevations. In RMA2 boundary conditions are generally defined on nodestrings but may also be defined on nodes. The default boundary condition is a closed boundary (no flow). See Nodestring Boundary Conditions and Nodal Boundary Conditions for more information.

Material Properties

Each element is assigned a material type. Material properties describe the hydraulic characteristics of each material type.

RMA2 Hydraulic Structures

RMA2 includes support for several different types of structures including weirs, culverts, drop inlets, gates and piers. See RMA2 Hydraulic Structures for more information.

Running the Model

The RMA2 Files are written automatically with the SMS project file or can be saved separately using the File | Save RMA2 or File | Save As menu commands. See RMA2 Files for more information on the files used for the RMA2 run.

RMA2 can be launched from SMS using the RMA2 | Run FSTD2H menu command. A check of some of the common problems called the Model Checker is done each time the model is launched, or by selecting the RMA2 | Model Check menu command.

RMA2 Menu

See RMA2 Menu for more information.

RMA2 Tools

Besides the standard mesh module tools, RMA2 contains a tool for creating control structures.

Create Control Structure TABS Create Control Structure Tool.svg 
Converts a node on a 1D element into a control structure.

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