000 02599nab a2200205 4500
005 20260520002820.0
008 260224s2009 xxu
245 0 0 _aIFP-C3D: an unstructured parallel solver for reactive compressible gas flow with spray
260 _a
_b
_cmayo/jun. 2009
270 _a05/08/2009 ; 05/08/2009
300 _a26 p. ; 309-335
520 _aTranscripción del resúmen publicado por el autor: IFP-C3D, a hexahedral unstructured parallel solver dedicated to multiphysics calculation, is being developed at IFP to compute the compressible combustion in internal engines. IFP-C3D uses an unstructured formalism, the finite volume method on staggered grids, time splitting, SIMPLE loop, sub-cycled advection, turbulent and Lagrangian spray and a liquid film model. Original algorithms and models such as the conditional temporal interpolation methodology for moving grids, the remapping algorithm for transferring quantities on different meshes during the computation enable IFP-C3D to deal with complex moving geometries with large volume deformation induced by all moving geometrical parts (intake/exhaust valve, piston). The Van Leer and Superbee slop limiters are used for advective fluxes and the wall law for the heat transfer model. Physical models developed at IFP for combustion (ECFM gasoline combustion model and ECFM3Z for Diesel combustion model), for ignition (TKI for auto-ignition and AKTIM for spark plug ignition) and for spray modelling enable the simulation of a large variety of innovative engine configurations from non-conventional Diesel engines using for instance HCCI combustion mode, to direct injection hydrogen internal combustion engines. Large super-scalar machines up to 1 000 processors are being widely used and IFP-C3D has been optimized for running on these Cluster machines. IFP-C3D is parallelized using the Message Passing Interface (MPI) library to distribute calculation over a large number of processors. Moreover, IFP-C3D uses an optimized linear algebraic library to solve linear matrix systems and the METIS partitionner library to distribute the computational load equally for all meshes used during the calculation and in particular during the remap stage when new meshes are loaded. Numerical results and timing are presented to demonstrate the computational efficiency of the code.
581 _a3
773 0 _tOil and Gas Science and Technology
_g64
942 _cARTICULO
100 1 _aBohbot, J.
_921415
100 1 _aGillet, N.
_941721
100 1 _aBenkenida, A.
_921417
999 _c170254
_d170254