Conjugate-Gradient solver did not converge!
Hi experts,
Currently I am running an Under hood Thermal Management analysis using Star-ccm+ v8.06.005. However, I am facing this error; 'Conjugate-Gradient solver did not converge' while I am trying to run the solution. Can anyone tell me what does this error means? What should I do to fix it? Your kind help is highly appreciated :). Regards, Sazrul Kuala Lumpur. |
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You may switch off CG and this message the following way. Select: Solver->Segregated Flow->Pressure->AMG Linear Solver->Acceleration method->None |
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If I ignore the acceleration, I believe that will affect my simulation, Am I right? Is there a way to fix this issue and get convergence w/o ignoring acceleration? Thanks! |
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If you don't want to ignore the acceleration then try to make experiments, for example decreas Under-relaxation factor. Solver->Segregated Flow ->Velocity->Under-relaxation factor and Solver->Segregated Flow ->Pressure->Under-relaxation factor Good luck! |
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