Hello,
Who here has modeled a Pump Station in 2D, which is a new option in RAS v6 (2D pump stations)? I have a pump station with multiple pump groups, some groups with multiple pumps and others a single pump. In each case, I enter a Pump Efficiency Curve (H-Q curve) for each pump group in the Pump Group Data. But when I run the model, HEC-RAS seems to be doubling the flow for each pump. It is very perplexing! I have to cut all the flows in my tables in half to get the correct pumped flow! I’ve checked it thoroughly, based on the number of pumps on or off given my On/Off WS Elev set points, and it seems to be consistently doubling the flow for each pump throughout the simulation no matter how which or many pumps are on.
Also, the hydrograph and tabular results from the RAS dashboard (the buttons we typically use for 1D but provide some 2D results) don’t seem to report any plots or results, just blanks or Zeroes. I have to use Mapper and profile flux lines to compute the flow entering and exiting my pump station.
Has anyone noticed the same things? Especially with regard to doubling the flow. Thanks!
~Bob