TY - GEN

T1 - An algorithm for DNS/LES of compressible reacting flows

AU - Doom, Jeff

AU - Mahesh, Krishnan

PY - 2007

Y1 - 2007

N2 - A non - dissipative, implicit, all Mach number algorithm for direct numerical and large eddy simulation of compressible reacting flows, is described. The compressible Navier-Stokes equations are rescaled so that the zero Mach number reacting equations are discretely recovered in the limit of zero Mach number. The dependent variables are co-located in space, and thermodynamic variables are staggered from velocity in time. The algorithm discretely conserves kinetic energy in the incompressible, inviscid, non-reacting limit. The species equations are implicit to allow for stiff chemical mechanisms, and are readily applied to complex chemistry. Numerical examples ranging from one-step chemistry to a nine species, nineteen reaction mechanism for H2 and O2 are presented.

AB - A non - dissipative, implicit, all Mach number algorithm for direct numerical and large eddy simulation of compressible reacting flows, is described. The compressible Navier-Stokes equations are rescaled so that the zero Mach number reacting equations are discretely recovered in the limit of zero Mach number. The dependent variables are co-located in space, and thermodynamic variables are staggered from velocity in time. The algorithm discretely conserves kinetic energy in the incompressible, inviscid, non-reacting limit. The species equations are implicit to allow for stiff chemical mechanisms, and are readily applied to complex chemistry. Numerical examples ranging from one-step chemistry to a nine species, nineteen reaction mechanism for H2 and O2 are presented.

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M3 - Conference contribution

AN - SCOPUS:34250793399

SN - 1563478900

SN - 9781563478901

T3 - Collection of Technical Papers - 45th AIAA Aerospace Sciences Meeting

SP - 16684

EP - 16698

BT - Collection of Technical Papers - 45th AIAA Aerospace Sciences Meeting

T2 - 45th AIAA Aerospace Sciences Meeting 2007

Y2 - 8 January 2007 through 11 January 2007

ER -