This article shows how to fix the "Weir Submergence Not Set" error.
Written by Chris Goodell | Kleinschmidt Associates Copyright © The RAS Solution. All rights reserved. I’ve mentioned this before, but I am thoroughly impressed with the robustness of the finite volume solution scheme used in 2D areas in HEC-RAS. As long as your Courant Numbers are in a good spot, you rarely get errors and instabilities in […]
HEC-RAS has the ability to simulate flow at hydraulic controls in a variety of ways. Bridges, culverts, inline structures, lateral structures, and SA/2D area connections can all act as hydraulic controls. Effectively, they break up the conservation equations used between cross sections in a 1D reach and/or cells in a 2D area with empirically derived […]
Here’s a video of pressure and weir flow yesterday at a bridge near my house. This was brought on by some very intense rainfall over a short period of time. What do you think the weir coefficient would be? ‘Tis the season in many parts of the world for heavy rains and high water. This […]