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Solution is converging for normal mesh size, but not converging for finer mesh sizes
Posted 2022年3月15日 GMT-4 09:12 Fluid & Heat, Computational Fluid Dynamics (CFD) Version 5.6 0 Replies
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I am performing a flow/fiber coupling analysis in following three steps:
- solving stationary creeping flow (no volume force)
- solving time-dependent stabilized convection-diffusion equation for fiber orientation prediction (taking solution of step 1 as initial conditions as source in term step is dependent on velocity gradients)
- solving stationary creeping flow with volume force terms enabled (the volumes force is providing a coupling between fiber orientation and flow behaviour).
This methodology is working and converging for nomral mesh size, but for finer mesh sizes the step 3 of above methodology is not converging.
What could be issue here, and how can I solve this?
Thank you.
Hello Salman Zafar
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