- #1
Noh-hoon Lee
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Please understand my low command of English.
I'm developing Direct Simulation Monte Carlo and I'm now validating.
To validate my DSMC code, I'm checking the viscosity in Couette Flow.
Simulation Condition is, Kn = 0.0056(Near Continuum) and Gas is Nitrogen, Temperature is 273K.
Nitrogen viscosity is approximately 1.656e-5 but in my simulation, viscosity is now 1.5e-5.
I can't understand why viscosity is lower than experimental value.
I have thougt it is caused by cell size. But I set the cellsize as half or quarter of mean free path.
It is common value of DSMC simulation.
I'm now wating for your advice :)
I'm developing Direct Simulation Monte Carlo and I'm now validating.
To validate my DSMC code, I'm checking the viscosity in Couette Flow.
Simulation Condition is, Kn = 0.0056(Near Continuum) and Gas is Nitrogen, Temperature is 273K.
Nitrogen viscosity is approximately 1.656e-5 but in my simulation, viscosity is now 1.5e-5.
I can't understand why viscosity is lower than experimental value.
I have thougt it is caused by cell size. But I set the cellsize as half or quarter of mean free path.
It is common value of DSMC simulation.
I'm now wating for your advice :)
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