calculating torque

shawn123 · January 22, 2010, 16:16

hi everyone, I have a question regarding calculating the torque on a turbine in CCM+, I know we can calculate lift and drag, but any idea about calculating torque?thanks

seang · January 23, 2010, 02:06

Quote:

Originally Posted by shawn123

hi everyone, I have a question regarding calculating the torque on a turbine in CCM+, I know we can calculate lift and drag, but any idea about calculating torque?thanks

Torque = distance x force

shawn123 · January 23, 2010, 17:26

THANKS for the info, I know the formula but l am looking for a way to calculate the torque over a rotating part, using CCM+ features, any clue?

seang · January 23, 2010, 21:32

In Report, choose a moment report, you will have to define this about a certain point. You will then have to choose the surfaces which contributes the pressure+shear forces.

Torque is calculated by the integral of distance (from the point you defined in the moment dialog) times pressure over the surfaces concerned. Don't worry, this is done by the reporting tools of star-ccm+.

January 22, 2010, 16:16	calculating torque	#1
shawn123 New Member shawn Join Date: Apr 2009 Posts: 6 Rep Power: 17	hi everyone, I have a question regarding calculating the torque on a turbine in CCM+, I know we can calculate lift and drag, but any idea about calculating torque?thanks

January 23, 2010, 17:26	torque	#3
shawn123 New Member shawn Join Date: Apr 2009 Posts: 6 Rep Power: 17	THANKS for the info, I know the formula but l am looking for a way to calculate the torque over a rotating part, using CCM+ features, any clue?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
positive and negative torque forces	Wei-Haur Lam	CFX	0	March 19, 2008 07:45
Calculating torque	Andrew	FLUENT	5	September 4, 2007 11:10
turbine torque calculating in Fluent	Bagus Putra Muljadi	FLUENT	0	May 18, 2006 02:34
How to update polyPatchbs localPoints	liu	OpenFOAM Running, Solving & CFD	6	December 30, 2005 17:27
about use macro to compute torque in TASCflow	lancy	CFX	0	June 10, 2003 06:19

January 23, 2010, 21:32		#4
seang Member Kuan Tek Seang Join Date: Mar 2009 Posts: 31 Rep Power: 17	In Report, choose a moment report, you will have to define this about a certain point. You will then have to choose the surfaces which contributes the pressure+shear forces. Torque is calculated by the integral of distance (from the point you defined in the moment dialog) times pressure over the surfaces concerned. Don't worry, this is done by the reporting tools of star-ccm+.