CFD simulation of a compressor.
I want to perform CFD simulation of a compressor blade (turbomachinery). I have created two domains, one cylindrical for the blade and a rectangular domain for flow simulation. Meshing and all other boundary conditions proceed fine without any error. But when I run the calculation in ANSYS FLUENT, I get the following errors after 500-600 iterations :-
1. # Divergence detected in AMG solver: pressure correction-> Turning off correction scaling. 2. # Divergence detected in AMG solver: pressure correction-> Increasing relaxation sweeps! 3.# You may try the enhanced divergence recovery with (rpsetvar 'amg/protective-enhanced? #t 4. # Divergence detected in AMG solver: pressure correction. I have run the simulation as transient one, with pressure based and laminar flow.. Following are some of my input data :- Time step size - 0.01 Number of time steps - 100 Max. number of iterations -80 Initialization is hybrid. Angular velocity- 50 rad/s Please help me find a solution. |
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