Fourth International Symposium on Turbulence and Shear Flow Phenomena
DOI: 10.1615/TSFP4
ANALYSIS OF SCALAR DISSIPATION RATE AND TURBULENT TRANSPORT IN LES OF PREMIXED TURBULENT COMBUSTION
pages 787-792
DOI: 10.1615/TSFP4.1320
摘要
Using a priori filtering of DNS of a premixed turbulent V-shape flame, closures for the filtered scalar dissipation rate and turbulent transport are discussed. Then, a novel subgrid scale closure for Large Eddy Simulation of premixed combustion is proposed. This approach combines a presumed Probability Density Function, accounting for the subgrid scale characteristic flame length scale, with a flame tabulated chemistry approach (FPI). The ORACLES experiment is used as a first validation test case.