UDS source term problem

tompa · January 24, 2011, 08:15

i have two uds for scalar n0 and n1

now i want to add a source term "gradient (gradient n1)" in n0's equation

but i only find that gradient n1=C_UDSI_G(c,t,1)

how about "gradient (gradient n1)" ?

gearboy · January 24, 2011, 21:48

Quote:

Originally Posted by tompa

i have two uds for scalar n0 and n1

now i want to add a source term "gradient (gradient n1)" in n0's equation

but i only find that gradient n1=C_UDSI_G(c,t,1)

how about "gradient (gradient n1)" ?

Set another additional UDS2 and let UDS2=C_UDSI_G(c,t,1), Then C_UDSI_G(c,t,2) is what you want.

tompa · January 26, 2011, 02:22

thanks for your anwser. There's another quastion about the error about type of variables.

C_UDSI(c,t,2) can't be equal to C_UDSI_G(c,t,1) seems like

that C_UDSI(c,t,2) is a scalar but C_UDSI_G(c,t,1) is a vector?

January 24, 2011, 08:15	UDS source term problem	#1
tompa New Member tom pan Join Date: Nov 2010 Posts: 14 Rep Power: 4	i have two uds for scalar n0 and n1 now i want to add a source term "gradient (gradient n1)" in n0's equation but i only find that gradient n1=C_UDSI_G(c,t,1) how about "gradient (gradient n1)" ?

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

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
problematic source term in UDS	ak6g08	Fluent UDF and Scheme Programming	3	July 15, 2009 09:30
OpenFOAM on MinGW crosscompiler hosted on Linux	allenzhao	OpenFOAM Installation	127	January 30, 2009 19:08
DecomposePar links against liblamso0 with OpenMPI	jens_klostermann	OpenFOAM Bugs	11	June 28, 2007 17:51
Problem with source term in the calculation domain	galaad	OpenFOAM Running, Solving & CFD	0	November 28, 2005 09:43
UDS n It's source term	Umesh	FLUENT	3	December 17, 2003 16:31

January 26, 2011, 02:22		#3
tompa New Member tom pan Join Date: Nov 2010 Posts: 14 Rep Power: 4	thanks for your anwser. There's another quastion about the error about type of variables. C_UDSI(c,t,2) can't be equal to C_UDSI_G(c,t,1) seems like that C_UDSI(c,t,2) is a scalar but C_UDSI_G(c,t,1) is a vector?