SimpleFoam: High residuals after increase in Reynolds Number

JasonG · January 10, 2013, 14:09

88 is nothing compared to the 2000 I have been getting

. I am fairly frustrated with the lack of controls in Workbench. Whenever I get some down time I will have to investigate using the native OpenFOAM meshing.

saakwave · October 5, 2017, 11:11

Hello,
I noticed similar trends in which high Reynolds numbers or presence of bluff bodies in flow path at low Reynolds numbers causing this. Higher residuals in these cases I think is mostly due to the very fact of attempting to solve increasingly unsteady flows with a steady-state solver like simplefoam.

October 5, 2017, 11:11	Unsteady flows at higher Reynolds number	#22
saakwave New Member Join Date: Sep 2017 Posts: 2 Rep Power: 0	Hello, I noticed similar trends in which high Reynolds numbers or presence of bluff bodies in flow path at low Reynolds numbers causing this. Higher residuals in these cases I think is mostly due to the very fact of attempting to solve increasingly unsteady flows with a steady-state solver like simplefoam.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
AMI speed performance	danny123	OpenFOAM	21	October 24, 2020 05:13
Obtaining Reynolds Number in FLUENT	Emmanuel	FLUENT	2	April 7, 2016 02:46
Convergence problem	suthichock	Main CFD Forum	27	May 11, 2009 08:05
SimpleFOAM for steady globally unstable Reynolds number	pbohorquez	OpenFOAM Running, Solving & CFD	0	February 19, 2009 11:47
How to increase the Re number in a jet flow comput	Novice	Main CFD Forum	6	December 4, 2006 08:06

January 10, 2013, 14:09		#21
JasonG Member Jason G. Join Date: Sep 2009 Location: St. Louis, IL Posts: 89 Rep Power: 17	88 is nothing compared to the 2000 I have been getting . I am fairly frustrated with the lack of controls in Workbench. Whenever I get some down time I will have to investigate using the native OpenFOAM meshing.