Calculate flow in pipe segment

[TMakwana13]

Hello all, I want to know if we can calculate` flow in pipe segment by defining inlet stream P,T and composition and outlet stream P. also, I don't see option to skip requirement of flow values for inlet stream.

[FrankRBrownIII]

Your problem has to many degrees of freedom. Your answer as stated has an infinite number of solutions. That's why no solution is the result.
Assuming that you have specified the pipe diameter. You are asking the simulator, which works in serial order, to backtrack and estimate a flow rate for a specific pressure drop. DWSIM does not work that way. It takes the incoming data and uses it to compute the next step.
the only simulator which I know of which could do that type of calculation was the former Hysym.. It is now Hysys, and I do not know if it retained that capabliliy.

[TMakwana13]

I find controller/ adjust not useful. Sometime it works but mostly doesn't. May be its me being new to DWSIM. Attaching file for reference.
pipe backpressure.xml

[FrankRBrownIII]

Can you post the file "pipe backpressure.dwxmz"? I am having difficulty opening an .xml file in DWSIM. Thanks

[TMakwana13]

github not allowing to attach dwxmz file. Attached as pdf here, pls change back to dwxmz to use.
pipe backpressure.pdf

[FrankRBrownIII]

Worked perfectly, as predicted. A suggestion for the simulation. (1) Increase the length to magnify the pressure drop. Say 1,000 m.

[TMakwana13]

Thanks all