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Multi-dimensional computation of compressible reacting flows through porous media to apply to internal combustion engine simulation. (English) Zbl 1205.76200
Summary: A new multi-dimensional Finite Volume (FV) solver of partial differential equations (PDEs) for compressible and reacting flows through porous media has been developed. The solver makes use of a pseudo-staggered arrangement, in order to preserve sharp value changes in pressure and velocity fields across Diesel Particulate Filter (DPF) porous walls; the resulting form of the pressure correction equation is able to achieve a fast convergence at very low permeability of the medium, also when it is associated with strong grid non-orthogonality.
A description of the theory adopted for the implementation of a highly efficient C++ object oriented dynamic library is presented first. The library has been applied to the new compressible solver for the multi-dimensional simulation of the hydrodynamics of full-scale wall-flow Diesel Particulate Filters. Code validation has been performed against experimental data available from the published literature.

76M25 Other numerical methods (fluid mechanics) (MSC2010)
76S05 Flows in porous media; filtration; seepage
80M25 Other numerical methods (thermodynamics) (MSC2010)
80A25 Combustion
Full Text: DOI
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