conv variable in cfx4.4

March 7, 2005, 08:55

I extract the conv variable at cell faces and calculate mass residual. But the results of my calculation is much higher that what cfx output generates. Is there anyone whos knows why. Or can you tell how cfx calculates mass residual?

thanks for any help

Tad

March 12, 2005, 12:42

Tad,

The CONV array is the mass flux (i.e. kg/area). To get the total mass in, you need to multiply by the AREA of the face. I think the arrays are in three components, so you need to do a vector summation to get the total.

Jeff

March 7, 2005, 08:55	conv variable in cfx4.4	#1
Tad Guest Posts: n/a	I extract the conv variable at cell faces and calculate mass residual. But the results of my calculation is much higher that what cfx output generates. Is there anyone whos knows why. Or can you tell how cfx calculates mass residual? thanks for any help Tad

March 12, 2005, 12:42	Re: conv variable in cfx4.4	#2
Jeff Guest Posts: n/a	Tad, The CONV array is the mass flux (i.e. kg/area). To get the total mass in, you need to multiply by the AREA of the face. I think the arrays are in three components, so you need to do a vector summation to get the total. Jeff

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Additional Variable	tav98f	CFX	3	April 28, 2011 13:33
emag beta feature: charge density	charlotte	CFX	4	March 22, 2011 10:14
error in COMSOL:'ERROR:6164 Duplicate Variable'	bhushas	COMSOL	1	May 30, 2008 05:35
Env variable not set	gruber2	OpenFOAM Installation	5	December 30, 2005 05:27
Replace periodic by inlet-outlet pair	lego	CFX	3	November 5, 2002 21:09