Written by Chris Goodell, P.E., D. WRE | WEST ConsultantsCopyright © RASModel.com. 2010. All rights reserved.Not sure if this will be changed for the soon-to-be-released version 4.1, but for now, the option to drop flow from a lateral structure into multiple cross sections is a little awkward. First thing you do is specify that you […]
Just heard that HEC-RAS Version 4.1 is due out in about 1 week. I thought I’d take this opportunity to post the Version 4.1 Release Notes to give you all a sneak peak of what’s to come. Check the HEC website in the next week or so for the official software release. Hydrologic Engineering CenterRiver […]
Written by Chris Goodell, P.E., D. WRE | WEST ConsultantsCopyright © RASModel.com. 2010. All rights reserved.Here’s a classic case for interpolation of cross sections in a RAS model. Notice the drop in water surface to near critical depth at the grade break. Then, at the next cross section upstream of the break, RAS seems to […]
Written by Chris Goodell, P.E., D. WRE | WEST ConsultantsCopyright © RASModel.com. 2010. All rights reserved.I was recently emailed this question regarding steady flow versus unsteady flow results: “My question is fairly basic. I have heard from a couple of other engineers that when flood levels are generated with usteady flows that it is typical […]