question about SIMPLE and under-relaxation factor

August 10, 2002, 12:24

Can someone kindly verify whether the following statement is true and if so, why is it the case :

"The sum of the under-relaxation factors for the pressure and momentum equation should be 1.0 when using the SIMPLE algorithm for pressure-velocity coupling in FLUENT"

Thank you.

Lily

August 11, 2002, 01:29

Is tht so? I always input pressure as 1.0 and Momentum as 0.5 when iterating...furthermore, i run energy tog with velocity etc.. Is tht wrong?

August 10, 2002, 12:24	question about SIMPLE and under-relaxation factor	#1
Lily Guest Posts: n/a	Can someone kindly verify whether the following statement is true and if so, why is it the case : "The sum of the under-relaxation factors for the pressure and momentum equation should be 1.0 when using the SIMPLE algorithm for pressure-velocity coupling in FLUENT" Thank you. Lily

August 11, 2002, 01:29	Re: question about SIMPLE and under-relaxation fac	#2
Deadly Guest Posts: n/a	Is tht so? I always input pressure as 1.0 and Momentum as 0.5 when iterating...furthermore, i run energy tog with velocity etc.. Is tht wrong?