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SimLab CFD Analysis: Solution doesn't converge

User: "Alberto Sardi"
Altair Community Member
Updated by Alberto Sardi

Hi,

I'm new in SimLab 2023. 

I would like to know why my solution does not converge.


My problem is a simple cube placed inside a square section tube with air flowing through it and analyzed with laminar flow.
I followed these steps:
1) creation of the fluid via the "Domain" ribbon;
2) Creation of the cavity in the fluid, due to the presence of the cube, via the Connect Combine ribbon;
3) Surface Mesh of all bodies;
4) CFD mesh of the fluid body, designating the surfaces on which not to create the Boundary Layer and designating the solid bodies;
5) Designation of Inlet, Outlet and Wall with the corresponding ribbons;
6) Designation of the boundary conditions of velocity, pressure and temperature;
7) Update on Results.
The solution converges only for the velocity and pressure parameters, but the temperature does not converge.
Can someone help me?


Thank you in advance.

 

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