Hybrid computations with flux exchange.
We discuss a hybrid scheme that is based on flux exchange between a particle and a continuum system which reside in two slightly overlapping volumes in space. The scheme ensures conservation of mass, momentum and energy between a system of Lennard-Jones particles and a continuum description given by the compressible Navier-Stokes equations. An implementation in two dimensions employing the compressible Navier-Stokes equations to describe the continuum, and the Lennard-Jones potential to describe the particles, is discussed. The accuracy of the coupling scheme is tested successfully for the case of homogeneous flow and discussed for the more general case.
Department of Engineering, Haugesund Engineering College, 5528 Haugesund, Norway.
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Flekkøy