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-   -   Adding collisions to solver (http://www.cfd-online.com/Forums/openfoam-solving/58260-adding-collisions-solver.html)

alan_fergus April 26, 2006 11:46

i what to add particle particl
 
i what to add particle particle collision to a solver, i was wondering how i would call it and where would i need to call collision.H
thanks in advance
alan

pierre April 26, 2006 13:42

What's your case? And how are
 
What's your case? And how are you planning to model the particle motion? Eulerian or Lagrangian approach?

Pierre

alan_fergus April 27, 2006 08:15

lagrangian approach, i was loo
 
lagrangian approach, i was looking at the user contribution icoLagrangianFoam and was just wondering how you would include collision model

alan_fergus April 27, 2006 08:16

lagrangian approach, i was loo
 
lagrangian approach, i was looking at the user contribution icoLagrangianFoam and was just wondering how you would include the collision model

schmidt_d July 12, 2006 09:43

Alan, Nicolas Nordin implemen
 
Alan,
Nicolas Nordin implemented Peter O'Rourke's droplet collision model as a spray sub-model in OpenFOAM. O'Rourke's model presumes stochastic Lagrangian Particle tracking and uses kinetic theory to do an acceptance/rejection calculation of collisions.
See:
/home/foam/OpenFOAM/OpenFOAM-1.3/src/lagrangian/dieselSpray/spraySubModels/colli sionModel

For particles, other than drops, you can re-use the code that calculates the incidence of collision and modify the part that calculates the outcome of collision.
I have developed my own algorithms, but haven't written them into OpenFOAM.

taksue December 2, 2008 13:24

I am a Japanese student. I am
 
I am a Japanese student.
I am researching the collision of the droplets at the university, but the thesis and URL of the collision model are few in Japan.
I cannot understand trajectory model and ORourke model.
So, I want to read the thesis of the collision model.
Could anyone teach me the thesis or URL of the trajectory model and the ORourke model?
I'm sorry my bad English.


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