Coupled flow and segregated flow

rockydongre · July 3, 2014, 06:11

Hey guys what would happen if i use coupled solver instead of segregated in case of incompressible flow problem? is it going to lead me to a wrong result or it would just take longer time but will give me the right result at last?

please reply

me3840 · July 6, 2014, 17:29

The coupled solver is preconditioned, so you can use it for incompressible, but it may be difficult to converge depending on the problem. At the end of the day they should both give you the same answer. The coupled solver will probably be slower per iteration, though.

rockydongre · July 10, 2014, 13:28

thanks a lot me3840

July 3, 2014, 06:11	Coupled flow and segregated flow	#1
rockydongre New Member CFDguy Join Date: May 2014 Posts: 20 Rep Power: 12	Hey guys what would happen if i use coupled solver instead of segregated in case of incompressible flow problem? is it going to lead me to a wrong result or it would just take longer time but will give me the right result at last? please reply

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July 6, 2014, 17:29		#2
me3840 Senior Member Join Date: Nov 2010 Location: USA Posts: 1,232 Rep Power: 25	The coupled solver is preconditioned, so you can use it for incompressible, but it may be difficult to converge depending on the problem. At the end of the day they should both give you the same answer. The coupled solver will probably be slower per iteration, though.

July 10, 2014, 13:28		#3
rockydongre New Member CFDguy Join Date: May 2014 Posts: 20 Rep Power: 12	thanks a lot me3840