archeoptyrx |
June 19, 2013 16:55 |
No of simulated particles and No of real molecules in DSmc Simulation
Hello ppl ,
I am trying to simulate the knudsen number flow of 1 , using dsmc slover in OPENfoam .
For this i did the following ,
- mean free path = Kn *char length ; (some generated value)
- based on t collision model used , i have the formula for mean free path , from which i extract the number density
- i used this number density .
- Now i calculated t volume of the domain (wedge15 example in dsmc)
- No of real molecules = volume of domain * number density ; ( =1.35e17 )
- No of simulated molecules = no of real molecules / no of equivalent molecules ; (am i right ???? :confused:) = 67822.3
- what is the deltat??
The problem is when i run the simulation ,
The terminal window shows
No of real molecules = 1.7*** e17
No of dsmc particles = 35670 ;
I dont understand how it works . It will be great if someone helps me out . :confused::confused::(:confused:
Thanks
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