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yangqing August 18, 2002 09:05

lattice boltzmann method
 
i want to do some combustion simulation it is said lattice-boltzmann method is a excellent way for cfd. who can give me some advice .thanks

Free_and_SIMPLE August 19, 2002 02:34

Re: lattice boltzmann method
 
The Lattice Boltzmann method is indeed able to simulate combustion processes. At present time the most serious limitation is the assumption of low Mach number.

You can find some general information about the method in the excellent review article by Li-Shi Luo (www.icase.edu/~luo) or in the recent book by Sauro Succi, Oxford university press, 2001 (it also contains some references to combustion simulations using LBM).

Ching-Long Lin at the University of Iowa (www.engineering.uiowa.edu/~ching) and Olga Filippova and Dieter Haenel at the University of Duisburg (www.vug.uni-duisburg.de) have done a lot of work in the field of LBM combustion.

Regards.

Stefan Leschka August 20, 2002 17:48

Re: lattice boltzmann method
 
Another Paper: Junk, M., Raghurama Rao, S.V., A New Discrete Velocity Method for Navier-Stokes Equations, J. of Comp. Phys, 155, pp. 178-198,1999. Abstract: The relation between the lattice Boltzmann method, which has recently become popular, and the kinetic schemes, which are routinely used in computational fluid dynamics, is explored. A new discrete velocity method for the numerical solution of Navier–Stokes equations for incompressible fluid flow is presented by combining both the approaches. The new scheme can be interpreted as a pseudo-compressibility method and, for a particular choice of parameters, this interpretation carries over to the lattice Boltzmann method. c ° 1999 Academic Press Key Words: discrete velocity method; lattice Boltzmann method; kinetic schemes; incompressible Navier–Stokes equations; pseudo-compressibility methods.

Stefan

yangqing August 22, 2002 08:33

Re: lattice boltzmann method
 
oh, thanks is lattice boltzmann methods better than normal methods?

Stefan Leschka August 22, 2002 10:15

Re: lattice boltzmann method
 
I think, the fundamental idea of kinetic schemes is really a good idea, because the view in microscopic scale allows progress at the level of fundamental principles of physics (see Peculiar Velocity Method of Raghurama Rao, S.V.) and the Lattice-Boltzmann Method applies these principles of kinetic schemes on the Navier-Stokes equations. "Better?" If for your project its worth to apply this, I think yes. For further information have a look at the work of e.g. S.M. Deshpande, S.V. Raghurama Rao (Indian Institute of Science, Bangalore) or Frauenhofer Institute Kaiserslautern (Germany).


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