I did mislabel the StormSHED and Hydraflow columns. Thanks for pointing that out to me. The labels need to be switched. And yes, the reports do indicate that the pipe is 36" diameter. I had to retype the information in Word, so mistakes do happen. It would be nice to have both a hard copy...
You stated, "Without running a complete analysis of the system you've described, it appears that the design will probably work. Despite the fact that there appear to be errors in the Hydraflow output, the last line in the system, a 36" CMP pipe ( n=.024)at a slope of 0.0024 with a free outlet...
yes, we spoke with Engenious, and they weren't familiar with the inner workings of Hydraflow. We need to speak with someone who is knowledgeable about Hydraflow models. That's why I posted here, hoping that somebody could answer my question. At least I'm getting some responses! Thanks so...
The reach flowing south to north (MH223 to MH220) is negatively sloped, and the only way the consultant could model it was at a 0% slope (or a 0.001% slope in StormSHED). Please don't ask me why; that's just the way the system was built. Either that or they measured the inverts incorrectly, but...
here is the word file that shows reach #, flow values, slope, length, and pipe diameter.http://files.engineering.com/getfile.aspx?folder=4123156a-8d55-4712-b081-3535974a6139&file=stormsewer_tabulation.doc
here is the conveyance systemhttp://files.engineering.com/getfile.aspx?folder=0068ad4e-fdaf-4b3c-950d-c10cc0c8d94e&file=SR432_conveyance_diagram_TDA_1-1_(EAST).bmp
So, what is Full Q and Cap Full supposed to represent? These values must represent the carrying capacity of the pipe when flowing full. In StormSHED there is even a % Full Ratio column which yields values less than 1 if the pipes meet design criteria.
-Kim
Hi, I need to get this situation resolved. I need to verify a stormwater conveyance analysis and I'm puzzled as to why the two models provide different flow capacity values. A consultant provided me a Hydraflow conveyance model that shows "Cap Full" (Capacity Full I presume?) values are...
