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Hybrid computations with flux exchange
1Department of Engineering, Haugesund Engineering College, 5528 Haugesund, Norway.
Abstract:
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.
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