[SungJuHuang]

Hi, I'm studying the radical recombination phenomenon.

Here's the case I want to test:

1) Room temperature 300K,
2) 1 m length/20 mm diameter pipe
3) inlet flow rate 5000 sccm Ar+ (argon plus)
4) outlet pressure = 2 torr
5) Some Ar+ radical will recombination become Ar
6) Want to know the concentration distribution of Ar+/Ar

Can we simulate the recombination behavior of Ar+ (argon plus)?

Which physics model do we have to choose and how to set? Thank you!