Convergence issue for natural convection problem -- CFD Online Discussion Forums

December 14, 2018, 08:34	Convergence issue for natural convection problem	#1
manoj kumar dash New Member manoj kumar dash Join Date: Feb 2016 Posts: 8 Rep Power: 10	Dear esteemed researchers I am performing a natural convection simulation for a hollow cylinder at low L/D ratio for the problem i am not getting a converged result. For using 1st order discretization scheme in momentum and energy i am getting a good converged result, but when i switched to second order it gives a bad results. residuals are fluctuating irregularly. Please suggest how to tackle this issue. Yours Manoj I will be grateful to all for your valuable suggestion

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