- #1
Tom83B
- 45
- 0
Hi, I'm trying to simulate different expansions and processes in gas and I have 3 questions:
If the average distance, that a molecule goes without hitting another one is l (by the way, could you please tell me what this distance is called in english?) and x is the distance it's already passed without hitting another molecule, is the probability, that it hits a molecule at the current distance (\frac{1}{2})^{x/l}? (taken from the assumtion, that it passes the distance l with a 50% probability)
Is it useful (/common practice) to distribute the velocities of the molecules correspondently with the Maxwell-Boltzmann distribution or can I just give every molecule the same, average speed?
How do I proceed with the collision of two molecules? From what I've heard I want to calculate the probability that it hits another one, get a random number from 0 to 1 and find out if it hit something. But what next? How do I choose the molecule that it has hit?
If the average distance, that a molecule goes without hitting another one is l (by the way, could you please tell me what this distance is called in english?) and x is the distance it's already passed without hitting another molecule, is the probability, that it hits a molecule at the current distance (\frac{1}{2})^{x/l}? (taken from the assumtion, that it passes the distance l with a 50% probability)
Is it useful (/common practice) to distribute the velocities of the molecules correspondently with the Maxwell-Boltzmann distribution or can I just give every molecule the same, average speed?
How do I proceed with the collision of two molecules? From what I've heard I want to calculate the probability that it hits another one, get a random number from 0 to 1 and find out if it hit something. But what next? How do I choose the molecule that it has hit?