Torque value obtained from ANYSYS Fluent is for wall or air around the wall

Jahaan · December 27, 2020, 03:35

Hi Everyone,

I have a small question.

I have been doing a 2D simulation of flow over a rotating cylinder (Wall). i have used K-Omega solver with derived Y+ values and ran the simulation. I am confused from the derived torque value through Post processing window of Fluent "Reports → Forces → Moments → Select Wall → Print" .

Please advice the derived torque value is of the air rotating over the cylinder OR it is only of Cylinder.

Please share me a good reference to relate my scenario.

Please see the attached images for quick references.

thanks in advance

pakk · December 28, 2020, 13:54

Stupid question maybe, but aren't they the same?

Jahaan · December 31, 2020, 00:08

Firstly thanks for your reply.

I am bit skeptical about it, if both are same then theoretically calculated torque values of rotating cylinder and the ANSYS torque values of rotating wall are different.

Being a senior member of this page, It will be good if you can be helpful, instead of saying it a stupid question.
I am just starting my self with CFD, trying to explore things out and reaching for help. I would be more happy if i get any help, where i would like to correct myself.

pakk · December 31, 2020, 18:42

I didn't mean to say that your question is stupid, I meant that my question might be stupid.

December 31, 2020, 00:08		#3
Jahaan New Member Jahaan Join Date: Dec 2020 Posts: 4 Rep Power: 6	Firstly thanks for your reply. I am bit skeptical about it, if both are same then theoretically calculated torque values of rotating cylinder and the ANSYS torque values of rotating wall are different. Being a senior member of this page, It will be good if you can be helpful, instead of saying it a stupid question. I am just starting my self with CFD, trying to explore things out and reaching for help. I would be more happy if i get any help, where i would like to correct myself. Last edited by Jahaan; December 31, 2020 at 02:54.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Multiphase flow - incorrect velocity on inlet	Mike_Tom	CFX	6	September 29, 2016 01:27
Running UDF with Supercomputer	roi247	FLUENT	4	October 15, 2015 13:41
Problem in IMPORT of ICEM input file in FLUENT	csvirume	FLUENT	2	September 9, 2009 01:08
air bubble is disappear increasing time using vof	xujjun	CFX	9	June 9, 2009 07:59
Multicomponent fluid	Andrea	CFX	2	October 11, 2004 05:12

December 28, 2020, 13:54		#2
pakk Senior Member Join Date: Nov 2013 Posts: 1,965 Rep Power: 27	Stupid question maybe, but aren't they the same?

December 31, 2020, 18:42		#4
pakk Senior Member Join Date: Nov 2013 Posts: 1,965 Rep Power: 27	I didn't mean to say that your question is stupid, I meant that my question might be stupid.