Full Record

New Search | Similar Records

Sample Search Hits | Sample Images

…for the LES/PDF approach. The PDF approach for supersonic combustion modeling is reviewed in Chapter 3, and errors introduced by existing methods are discussed. A new approach called semi-discrete quadrature method of moments (SeQMOM) is then…

…obtain the solution to the PDF transport equation. The stochastic approach can be further divided into Lagrangian [42, 44, 45, 55] and Eulerian [52, 56] techniques. These methods are coupled to a deterministic LES solver in order to…

…1 2 4 6 8 8 . . . . . 10 10 11 14 14 17 Chapter 3. PDF approach for supersonic combustion modeling 3.1 Quadrature based moment methods . . . . . . . . . . . . . . . 3.1.1 Quadrature method of moments (QMOM) . . . . . . . . 3.1.2 Direct…

…quadrature method of moments (DQMOM) . . . 3.2 Numerical errors in DQMOM . . . . . . . . . . . . . . . . . . 3.3 Semi-discrete quadrature method of moments (SeQMOM) . . . 3.4 Numerical characteristics of the SeQMOM approach…

…Evolution of the second moment of a conserved scalar obtained using various methods after 0.1 flow through time. Note that the solution obtained from SeQMOM is very similar to that obtained from MOM. . . . . . . . . . . . . . . . . . . . . . . . Time…

…averaged contours of mixture fraction (top). Variance of mixture fraction obtained using various methods (bottom) is compared at (A) x/h=15, (B) x/h=30, and (C) x/h=43. Note that the variance prediction…

…chemistry, or in high Mach number flows, the joint-PDF of the thermochemical composition vector needs to be estimated in each computational cell by solving a PDF transport equation. The corresponding approach leads to LES/PDF 7 methods for turbulent…

…turbulence-chemistry interactions. While the LES/PDF approach is well suited for describing these subfilter correlations, existing methods for estimating the PDF were found to be inaccurate. Consequently, a novel approach for solving the PDF transport…