Re: instability problem

[jepson]

Dear Mathias, rnrnProblems solved ! “”Reynolds number just depends on a characteristic length and speed you defined”” that’s the point, During the simulation, once the reference length and time is determined, Reynolds number is fixed during the simulation, what should to do is just translate the simulation result to dimensionless and then to the physical system. I have read the unit choice of Lattice Boltzmann simulation and refer to your suggestions, that maybe the reason why I confused. rnrnThe Reynolds number is not exactly the physical system Reynolds number only depend on the reference you chose.Am I right now?rnrnmany thanks rnrnJepson