LATTICE BOLTZMANN MODEL FOR SIMULATING FLOWS WITH MULTIPLE PHASES ANDCOMPONENTS

A lattice Boltzmann model is developed which has the ability to simula te flows containing multiple phases and components. Each of the compon ents can be immiscible with the others and can have different mass val ues. The equilibrium state of each component can have a nonideal gas e quation of state at a prescribed temperature exhibiting thermodynamic phase transitions. The scheme incorporated in this model is the introd uction of an interparticle potential. The dynamical rules in this mode l are local so it is highly efficient to compute on massively parallel computers. This model has many applications in large-scale numerical simulations of various types of fluid flows.