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Laminar flow and Heat transfer
Posted Jun 24, 2018, 7:27 AM EDT Fluid, Computational Fluid Dynamics (CFD), Mesh 1 Reply
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I am facing a problem with Laminar flow and Heat Transfer in Fluids modules. I have found some examples regarding these modules, where in the boundary conditions of the Laminar Flow the "Pressure, no viscous stress" was selected.
For my program, I would like to use in the Boundary Condition section the "Laminar inflow" with a Flow rate given by the user. But in this case, I get the error message "Failed to find consistent initial values".
I have found discussions about this topic: https://www.comsol.com/forum/thread/25297/failed-to-find-consistent-initial-values?last=2017-09-04%2016%3A38%3A20 and I have tried all these suggestions, but none of them worked.
Can somebody help me, how should I put those initial values? I can put some velocity and pressure there, no flow rate.
The final goal is to see the influence of a gas flow in the temperature of a heated body (metallic filament), which is situated in a pipe through which we apply the gas flow.
Thanks for every help!