TUFLOW 1D2D SX Advice: Difference between revisions

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= Introduction =
With the release of TUFLOW HPC (in 2017) and the continuous improvement of GPU hardware compute capability, there is an industry trend for models of higher resolution. As such, the 2D cell size in flood models is becoming smaller and smaller. Testing has shown in some instances reducing the 2D cell size may lead to model instability at 1D/2D SX locations. This Wiki page discusses this observation, the cause and available methods to correct the instability. Topics of discussion include: <br>
* 1D timestep selection <br>
* Use of a 1D Node to assign 1D/2D boundary condition cells <br>