Menu

Discussion Forum

New Discussion
Filtrer

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Where are crosswind and streamline diffusion equations

Posted 11 sept. 2010, 21:18 UTC−4 1 Reply

John
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi, when I look at the equations for turbulent k.e. then I can see "helper" variables get defined for upwind diffusion, but I can't see them being used in any equation, nor can I see where the diffusion parameters are being used.

Well, actually, I *can* find them being used in the boundary conditions they get used to build boundary variables sigma_dg_ns and upwind_ns and then those get incorporated in the boundary.

But they don't seem to be in the body of the equations, which confuses me...

Any suggestions? Thanks, John
1 Reply Last Post 12 sept. 2010, 05:35 UTC−4
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 12 sept. 2010, 05:35 UTC−4
HI

I have no idea, I would also have expected to see them in the domain definitions, puzzling ...

--
Good luck
Ivar
HI I have no idea, I would also have expected to see them in the domain definitions, puzzling ... -- Good luck Ivar

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content