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Oscillating residual in steady-state solver

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February 14, 2023, 05:27	Oscillating residual in steady-state solver	#1
songyi719 Member Song Young Ik Join Date: Apr 2022 Location: South Korea Posts: 59 Rep Power: 4	I modified drivAerFastback tutorial to increase mesh, and changed car model into more detailed one I have. It use simpleFoam with k-w sst turbulence model However, after making this change, residual started to oscillate residual_graph.png Residual continues to diverge and return to near zero. I want this residual to constantly decrease and converge to zero so I can get result, but it never does so. Why would residual oscillate in steady state solver??

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