tips to speedup the convergence of CHT problem with gravity

derisala · February 24, 2011, 01:04

Hello all,

i am simulating the conjugate heat transfer problem with gravity, 1st i got good convergence with only flow , now i am solving flow with gravity ,But its taking much time to get convergence ...

please can anybody give some tips to converge my solution quickly

alastormoody11 · February 24, 2011, 03:28

If your residuals are following a predictable trend and the are reaching the convergence criterion without oscillating too much, a general piece of advice would be to increase the under-relaxation factors to speed up the convergence.

February 24, 2011, 01:04	tips to speedup the convergence of CHT problem with gravity	#1
derisala New Member Ramakrishna D Join Date: Feb 2011 Posts: 1 Rep Power: 0	Hello all, i am simulating the conjugate heat transfer problem with gravity, 1st i got good convergence with only flow , now i am solving flow with gravity ,But its taking much time to get convergence ... please can anybody give some tips to converge my solution quickly

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February 24, 2011, 03:28		#2
alastormoody11 Senior Member Join Date: Jun 2009 Posts: 100 Rep Power: 17	If your residuals are following a predictable trend and the are reaching the convergence criterion without oscillating too much, a general piece of advice would be to increase the under-relaxation factors to speed up the convergence.