HecRas 6.3.1 2D flow modeling for beginners

Here you can find a general explanation of HecRas 2D modeling of flow.
I talked about how to find the projection file, Ras Mapper, How to find the problems and solutions, What is the best type of mesh? , How to see the hydraulic connectivity of cells, Break lines, Refinement regions, How to modify the terrain or add a channel and bridge pier to the terrain, Dynamic time step, Hydraulic warm up and ramp, etc.

(NTNU numerical modeling and hydraulic course 2023)