Hi Dear All,
I study LBM from last few months and still it’s new for me. One i can not find enough gap for future research work using this method, it’s look to me that it’s developed from long time by so many great researchers. So i try to use this method for some practical problems.But i have some basic questions that i not fully understand. If some can give the answeres with some logic and from physical aspects it will be highly appreciated.
- What’s the main difference between particle distribution function (f) and equilibrium distribution function(f(eq)). Which one play a major role in LBM.
- What’s the main logic behind single relaxation time parameter (t) in LBM. Can the LBM fully depend on this parameter or up to some extend.
- Not from programing point of veiw. What’s the main difference between streaimg and collison steps in LBM.
- What’s the basic theme behind speed of sound.
Can anybody help to explain from physical point of view the importance and existence of above questions.
Thanks in advance
Yuan Chao Mei