simpleFoam low Reynolds sphere noisy solution -- CFD Online Discussion Forums

October 8, 2016, 18:49	simpleFoam low Reynolds sphere noisy solution	#1
aerospain Senior Member aerospain Join Date: Sep 2009 Location: Madrid, Spain Posts: 149 Rep Power: 17	Hello everyone! I'm running into some trouble with a sphere of 1m in diameter for Reynolds number 200. If I have a kinematic viscosity of 1e-05 defined in transportProperties, I will be a speed n the order of millimetres per second. And, this gives a non-converged, very noisy, solution. I will try next setting a speed of 1m/s and change the viscosity accordingly for whatever Reynolds I need. I know this is the case with other solvers, like Fluent, does anyone know the reason for this behaviour? Regards,

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