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Extended Lagrangian particle-in-cell (ELPIC) code for inhomogeneous compressible flows. (English) Zbl 0840.76052
ELPIC, a macroparticle code for modeling complex nonstationary inhomogeneous compressible flows, is described and demonstrated. It operates with Lagrangian-type finite-sized rectangular particles with adjustable sizes. The particles carry mass, which is constant between divisions, and a number of chemical and thermodynamical properties of the substance they represent, including the index of the equation of state, chemical composition, mechanical properties, etc. The ELPIC approach combines the essential advantages of both Eulerian and Lagrangian approaches, and overcomes the difficulties encountered by Nishiguchi and Yabe in their well-known code SOAP, based on conceptually similar principles.

76M20 Finite difference methods applied to problems in fluid mechanics
76N10 Existence, uniqueness, and regularity theory for compressible fluids and gas dynamics
Full Text: DOI
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