|
High flow modeling method
Dear:
I have been modeling a stright channel with simple geometry. There are two bridges across the channel. The deck of the bridge is somewhat under the flood WSE. The flow condition will set to subcritical. Suggested that the deck of the bridge will obstruct the flow area about 10% when modeling the flood. I found that it would get different answer using the "Energy Method" and "Pressure/Weir Flow Method" at the high flow selection. The Energy Method will get much lower WSE than Pressure Method.
Does anyone have any suggestion to choose which answer? And which answer wil be the most appropriate? It seems that HEC-RAS provides different seclections, but I didn't know which is the most appropriate.
Best Regards
Alex Lin
|
Linear Mode
