Residuals not converging properly -- CFD Online Discussion Forums

April 23, 2022, 09:52	Residuals not converging properly	#1
kishore208 New Member Chaitanya kishore Join Date: Jun 2021 Posts: 9 Rep Power: 5	Hi everyone. I am simulating a flow through a square channel using buoyantSimpleFoam. A Residual graph is attached here. Flow in along y-direction. The residuals of Ux, Uy and P_rgh are not converging below 10^-6. Can anyone help me regarding why these residuals are decreasing and again increases at the end and becoming constant? Capture.JPG Capture2.JPG Thank you Last edited by kishore208; April 23, 2022 at 09:59. Reason: Image is not attached.

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