|
[Sponsors] |
Is it possible to influence the velocity of an scalar transport equation? |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
January 9, 2010, 19:05 |
Is it possible to influence the velocity of an scalar transport equation?
|
#1 |
New Member
Join Date: Jan 2010
Posts: 5
Rep Power: 16 |
Hey everyone!!
Is there any possibility to influence the velocity of an scalar transport equation. I want to reach the scalar is transportet by another velocity than the flow velocity. For example: the transported scalar should move with a fix (very small) velocity in the radial direction of a pipe, when the main flow is in the direction of the pipe. Thanks a lot! With best regards, Jan |
|
January 11, 2010, 13:02 |
|
#2 |
Member
Tristan Burton
Join Date: Mar 2009
Posts: 43
Rep Power: 17 |
Jan,
What's the physical mechanism here? Can you get the radial advection with a modification to the diffusion coefficient? If you don't want advection due to the flow velocity, it seems like you should use a diffusive transport equation and adjust the diffusion coefficient to get the desired behavior. I know that in turbulent particle-laden flow modelling they talk about particle "diffusion" even though particles don't really diffuse, but their response to the turbulent velocity fluctuations can be treated as a "diffusion". Tristan |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Scalar transport equation dimension problem | litonx | OpenFOAM Running, Solving & CFD | 3 | March 2, 2007 07:49 |
Velocity in Porous medium : HELP! HELP! HELP! | Kali Sanjay | Phoenics | 0 | November 6, 2006 07:10 |
transport equation for SGS scalar variance | chinthakindi | Main CFD Forum | 0 | April 27, 2004 10:26 |
what the result is negatif pressure at inlet | chong chee nan | FLUENT | 0 | December 29, 2001 06:13 |
Scalar Transport Equations | 123 | Main CFD Forum | 6 | August 10, 1998 10:05 |