|May 19, 2016, 11:47||
FLUENT DPM unsteady particle time step VS injection time step
Join Date: May 2011
Posts: 2Rep Power: 0
The user manual says " You can either Inject Particles at Particle Time step or at the flow time step."
Is it possible to setup a user defined injection time step in unsteady tracking, which is different from the particle tracking time step?
For example, I want to study particles in its mean free path without any collisions.
I know the particle flow rate, say 1E7 particles injected per second. And I know the time corresponding to its mean free path say 1E-10s.
If I set the particle tracking time step is 1E-10s, then because of "injection time step=tracking time step", then I injected 1E-10s * 1E7/s =1E-3 particles. This is unphysical! The particle number should be integer, at least 1.
Who could provide some suggestion in the above scenario?
|Thread||Thread Starter||Forum||Replies||Last Post|
|High Courant Number @ icoFoam||Artex85||OpenFOAM Running, Solving & CFD||11||February 16, 2017 14:40|
|Stuck in a Rut- interDyMFoam!||xoitx||OpenFOAM Running, Solving & CFD||14||March 25, 2016 08:09|
|Contribution a new utility: refine wall layer mesh based on yPlus field||lakeat||OpenFOAM Mesh Utilities||57||February 1, 2015 09:25|
|time step directories naming issue||Andrea_85||OpenFOAM||3||April 3, 2014 08:38|
|DPM UDF particle position using the macro P_POS(p)[i]||dm2747||FLUENT||0||April 17, 2009 01:29|