[archeoptyrx]

Hello ppl ,

I am trying to simulate the knudsen number flow of 1 , using dsmc slover in OPENfoam .

For this i did the following ,

1. mean free path = Kn *char length ; (some generated value)
2. based on t collision model used , i have the formula for mean free path , from which i extract the number density
3. i used this number density .
4. Now i calculated t volume of the domain (wedge15 example in dsmc)
5. No of real molecules = volume of domain * number density ; ( =1.35e17 )
6. No of simulated molecules = no of real molecules / no of equivalent molecules ; (am i right ???? ) = 67822.3
7. 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 .



Thanks