UDS Neumann Boundary Condition

Richard Parker · August 13, 2012, 07:24

Hi All,

I am trying to set a Neumann Boundary condition in the outlet of a long tube for the concentration gradient of an UDS. This is, I want to implement

d(UDS)/dy=0

In the outlet (or cells adjacent to the outlet boundary). I imagine I should use DEFINE_PROFILE and C_UDSI_G. Has anyone done this in the past either with UDS, pressure, temperature, or anything else?

Thanks!

R

borhan_sd@yahoo.com · August 1, 2013, 04:40

Hi Mr.Richard,I have the same problem,have you solved your problem?
Would you tell me please how?

blackmask · August 1, 2013, 06:44

Look really carefully at the GUI panel and you will find where to set the b.c. for user-defined scalar(s).

August 13, 2012, 07:24	UDS Neumann Boundary Condition	#1
Richard Parker New Member Richard Parker Join Date: Jul 2012 Posts: 10 Rep Power: 14	Hi All, I am trying to set a Neumann Boundary condition in the outlet of a long tube for the concentration gradient of an UDS. This is, I want to implement d(UDS)/dy=0 In the outlet (or cells adjacent to the outlet boundary). I imagine I should use DEFINE_PROFILE and C_UDSI_G. Has anyone done this in the past either with UDS, pressure, temperature, or anything else? Thanks! R

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August 1, 2013, 04:40		#2
borhan_sd@yahoo.com Member soodabe Join Date: Apr 2013 Posts: 40 Rep Power: 14	Hi Mr.Richard,I have the same problem,have you solved your problem? Would you tell me please how?

August 1, 2013, 06:44		#3
blackmask Senior Member Join Date: Aug 2011 Posts: 421 Blog Entries: 1 Rep Power: 22	Look really carefully at the GUI panel and you will find where to set the b.c. for user-defined scalar(s).