|
[Sponsors] |
OpenFoam Lagrange Volume Fraction & Particle Size |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
December 6, 2016, 13:11 |
OpenFoam Lagrange Volume Fraction & Particle Size
|
#1 |
Member
Chris Cloney
Join Date: Jun 2016
Location: Halifax, Canada
Posts: 62
Rep Power: 9 |
I feel like I should be able to find these answers somewhere but cant.
Can anyone describe how particle volume fraction is taken into account in OF Lagrange? Some codes include it directly in transported conservatives (e.g., solves for phi*rho, phi*rho*Y, ext), but I do not think that OF is doing this. In my mind this means that the governing equations are only correct for dilute flow? Second question: I know that having a particle diameter larger than the cell size can impact some of the boundary and face tracking (Hiting the wall by particle), but are there any other limitations? In my case my domain contains 1D cells that are micrometer size in one direction buy quite a bit larger (~ 5x) in the other two directions. I need it like this so that particle concentration comes out correct. The volume fraction in each cell is low (<2%), but in some cases the particle diameter may be larger than the x direction cell resolution. I have found fixes for the trackToFace routine but am wondering if I am going to run into any other limitations for having the particle diameter larger than the cell size? Thanks |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[snappyHexMesh] crash sHM | H25E | OpenFOAM Meshing & Mesh Conversion | 11 | November 10, 2014 11:27 |
injection problem | Mark New | FLUENT | 0 | August 4, 2013 01:30 |
interDyMFoam - change in volume fraction | gopala | OpenFOAM Running, Solving & CFD | 0 | April 27, 2009 10:46 |
On the damBreak4phaseFine cases | paean | OpenFOAM Running, Solving & CFD | 0 | November 14, 2008 21:14 |
[blockMesh] Axisymmetrical mesh | Rasmus Gjesing (Gjesing) | OpenFOAM Meshing & Mesh Conversion | 10 | April 2, 2007 14:00 |