Lagragian
Dear All, I wonder whether the concept of lagragian approach and discrete particle simulation is the same. Thank you very much. Regards, Suwinee

Re: Lagragian
Dear Suwinee,
There are different two kind discrete particle simulation: Eularlagragian approach and EularEular approach. IN eularlargragian approach, the gas phase be solved in eular method and the particle be solved in Largragian method. and I EularEular approach, Gas phase and particle also be solved Eular method. 
Re: Lagragian
Thank you for your answer Li Xinfeng. However, I have one more question. I think I understand about the concept of EulerLagra to simulate discrete particle but I thought that EulerEuler treats solid as a continuum. So, EulerEuler can't track individual particle. Please answer my question. Regards, Suwinee S.

Re: Lagragian
Dear Suwinee, You are basically correct, You can not track individual particles in the Eulerian frame, The particles is treated as continous distributed, a kind of average model. In the lagrangian you can track 1 particle (in most cases the 1 particle represents many particlea of the the same size , density etc.) thats the beauty/pro of the Lagrangian model.
Regards Jan 
Re: Lagragian
Hi all,
Suwinees's question could be of interest to many. However, I guess she may be wondering why she/he is not getting the right answers. I believe he/she has just been fed on the basics that are known to most of us, this is because the question is not clear. Please Suwinee could just not WONDER BUT ASK WHYS AND HOWS. This are easier question to answer, either one knows what to write or doesnt. thanks. Keny 
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