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archeoptyrx May 6, 2013 02:38

DSMC Foam Simulation
 
Hi ppl ,

I am new to openfoam . I tried running all the tutorials in openfoam folder. Now i wish to model my own problem in dsmc .

Its said that ,
  1. Grid size should be less than mean free path of the molecules
  2. deltaT <mean collision time
Now if i fix up a particle as N2


  1. number density =1e20
  2. meanfree path=0.0129m
depending upon the mean free path , i develop a grid whose size is less than the mean free path .



how to select the time interval ? deltaT .



Can anyone help me with this ?



Thanks
:confused::confused:


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