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Simulate constat flow rate trough a pipe
Posted 09.12.2016, 09:11 GMT-5 Computational Fluid Dynamics (CFD) Version 5.2a 1 Reply
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Hi,
I would like to simulate a simple situation of laminar flow rate through a pipe. This pipe is a section of a tube which is a part of a closed circuit where a pump imposes a constant flow rate.
I was thinking to simulate this by simply drawing 2D axysimmetric rectangle and imposing at the inlet and outlet a laminar inflow/outflow with the same flow rate value.
However, when I try to do this, the solution does not converge.
Any tips on how to simulate a constant flow rate through a pipe?
Thanks in advance,
Kind Regards,
Simona
I would like to simulate a simple situation of laminar flow rate through a pipe. This pipe is a section of a tube which is a part of a closed circuit where a pump imposes a constant flow rate.
I was thinking to simulate this by simply drawing 2D axysimmetric rectangle and imposing at the inlet and outlet a laminar inflow/outflow with the same flow rate value.
However, when I try to do this, the solution does not converge.
Any tips on how to simulate a constant flow rate through a pipe?
Thanks in advance,
Kind Regards,
Simona
1 Reply Last Post 09.12.2016, 11:00 GMT-5
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Posted:
8 years ago
Hello Simona,
Did you specify pressure anywhere?
If not, that could be at least part of the problem. Without a reference pressure set somewhere the Navier Stokes equation does not have a unique solution.
Best regards,
Jeff
Did you specify pressure anywhere?
If not, that could be at least part of the problem. Without a reference pressure set somewhere the Navier Stokes equation does not have a unique solution.
Best regards,
Jeff