|
[Sponsors] |
July 20, 2012, 15:58 |
Advice on modeling dispersion
|
#1 |
New Member
Jeff
Join Date: Aug 2010
Posts: 11
Rep Power: 16 |
I'm working on a model of the dispersion of a solute injected into a fluid that is driven in an oscillatory manner at the boundaries. I want to model the dispersion over several hours, but the oscillation is at the 1 Hz scale, so resolving each oscillation is very expensive.
I am thinking about a simplified modeling approach where I take larger time steps (say 1 min), and use a modified diffusion coefficient to try to include the effect of the individual small oscillations. Can anyone tell me if this is a common approach and whether you know of literature or problem-types where this sort of scheme is used? The questions I have are around how to derive a suitable diffusion coefficient from a short-run model that includes the oscillations. Thanks in advance Jeff |
|
Tags |
dispersion, unsteady |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
commercial codes for dispersion modeling of radioactive materials in surface water | bohluly | Main CFD Forum | 1 | October 3, 2012 04:34 |
Continuous Random Walk model (turbulence dispersion modeling of particles) | mittal | FLUENT | 0 | December 2, 2010 14:28 |
Fluid dispersion into a free stream - Advice needed please | LSF | FLUENT | 0 | April 12, 2009 09:45 |
gas dispersion modeling in atmosphere | eslam | CFX | 0 | September 13, 2007 15:25 |
Dense gas dispersion modeling | Alberto | Siemens | 1 | October 3, 2006 17:03 |