TY - GEN
T1 - Effective use of ISAT-Based storage/retrieval chemistry acceleration in turbulent combustion CFD
AU - Wu, Yuhui
AU - Haworth, Daniel C.
PY - 2007
Y1 - 2007
N2 - Database for On-Line Function Approximation (DOLFA) is a storage/retrieval chemistry-acceleration scheme that is based on Pope's ISAT method [S.B. Pope Combust. Theory Modell. 1:41-63, 1997]. The interface and nomenclature of DOLFA are similar to those of ISAT. The performance of DOLFA/ISAT greatly depends on the specification of their controlling parameters. This work examines the impacts of key input parameters on accuracy and computational efficiency in multidimensional CFD for incylinder combustion in IC engines. Highly nonhomogeneous systems with direct in-cylinder liquid fuel injection are considered, and results with a Lagrangian particle probability density function (PDF) method are presented. Numerical experiments show that the choice of independent tabulation variables, error tolerances, and scale factors greatly affect accuracy and performance.
AB - Database for On-Line Function Approximation (DOLFA) is a storage/retrieval chemistry-acceleration scheme that is based on Pope's ISAT method [S.B. Pope Combust. Theory Modell. 1:41-63, 1997]. The interface and nomenclature of DOLFA are similar to those of ISAT. The performance of DOLFA/ISAT greatly depends on the specification of their controlling parameters. This work examines the impacts of key input parameters on accuracy and computational efficiency in multidimensional CFD for incylinder combustion in IC engines. Highly nonhomogeneous systems with direct in-cylinder liquid fuel injection are considered, and results with a Lagrangian particle probability density function (PDF) method are presented. Numerical experiments show that the choice of independent tabulation variables, error tolerances, and scale factors greatly affect accuracy and performance.
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M3 - Conference contribution
AN - SCOPUS:84943529050
T3 - 5th US Combustion Meeting 2007
SP - 2318
EP - 2325
BT - 5th US Combustion Meeting 2007
PB - Combustion Institute
T2 - 5th US Combustion Meeting 2007
Y2 - 25 March 2007 through 28 March 2007
ER -