Welcome to the RAS Solution Forums HEC-RAS Help Velocity calculations from HDF data

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  • #7241
    Max
    Participant

    Does anyone know what the RasMapper Plot table contains. As shown in the picture below there is a combined Table and Example_plan (my simulation) tables with different values for velocity.

    RasMapper can show face velocities, (also shown in the picture below) and it appears that there is a cell velocity (in the center of the cell). If this is the cell velocity, then how does one get a value of 0.852 from the four vectors (0.018, 0.154, 0.947, and 1.066) ???

    #12105
    Anonymous
    Guest

    That velocity in the center is puzzling because it would appear that it should be greater than 0.947. I’m suspicious that RASMapper is not displaying the same velocity that the finite volume method is actually using during the solution.

    #12106
    cameron
    Participant

    Velocity is calculated at the vertices of each mesh. My guess is that it is taking an average from all of the vertices (Vx and Vy). When I have time, I will look into this more.

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