strain rate magnitude

ahmadbakri · May 30, 2010, 22:55

hi all

I have a problem, if I want to use the strain rate function inside the star ccm+ I have two options:
1.$StrainRate which can be used as field function
2. Strain Rate Magnitude which shows the values of strain rate in some section

i tried to run some simulation of a process, when I compared both functions they had the same values but, the first one didnt have the same distribution a long the cross section plane (i.e. the plane had only one value which is the smallest one, but the bar gave the same values as the bar in the Strain Rate Magnitude)

does any body know how to use the 2nd functoin because it is the true one in terms of strain rate values and distribution not like the 1st one which has only the same values but with wrong distribution, or how can I make them identical

thanks

vishyaroon · June 3, 2010, 14:03

Seems the first one is the vector function while the second one is the magnitude.

May 30, 2010, 22:55	strain rate magnitude	#1
ahmadbakri New Member ahmad bakri Join Date: May 2010 Posts: 20 Rep Power: 16	hi all I have a problem, if I want to use the strain rate function inside the star ccm+ I have two options: 1.$StrainRate which can be used as field function 2. Strain Rate Magnitude which shows the values of strain rate in some section i tried to run some simulation of a process, when I compared both functions they had the same values but, the first one didnt have the same distribution a long the cross section plane (i.e. the plane had only one value which is the smallest one, but the bar gave the same values as the bar in the Strain Rate Magnitude) does any body know how to use the 2nd functoin because it is the true one in terms of strain rate values and distribution not like the 1st one which has only the same values but with wrong distribution, or how can I make them identical thanks

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
strain rate in UDF	Paulina	FLUENT	11	November 20, 2014 04:06
UDF for critical strain rate to extinction	Birute Bunkute	FLUENT	1	March 25, 2010 16:40
About "Shear strain rate"	leo1985	CFX	0	April 26, 2008 05:48
Strain rate.	MM?	Main CFD Forum	1	February 15, 2006 09:55
strain rate at arbitrary position in a cell	K. Kevala	FLUENT	0	February 4, 2004 18:14

June 3, 2010, 14:03		#2
vishyaroon Senior Member Aroon Join Date: Apr 2009 Location: Racine WI Posts: 148 Rep Power: 17	Seems the first one is the vector function while the second one is the magnitude.