DIRECT NUMERICAL-SIMULATION INVESTIGATION OF THE CONDITIONAL MOMENT CLOSURE-MODEL FOR NONPREMIXED TURBULENT REACTING FLOWS

被引：27

作者：

MELL, WE ^{[1
]}

NILSEN, V ^{[1
]}

KOSALY, G ^{[1
]}

RILEY, JJ ^{[1
]}

机构：

[1] UNIV WASHINGTON, DEPT MECH ENGN, SEATTLE, WA 98195 USA

来源：

COMBUSTION SCIENCE AND TECHNOLOGY | 1993年 / 91卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1080/00102209308907639

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

By using direct numerical simulations (DNS), the accuracy of the Conditional Moment Closure Model (CMC) is tested for a nonpremixed reaction in decaying, spatially homogeneous turbulence. Simple one step, second order, irreversible, isothermal chemistry is used. The model equation is solved in two ways: (a) assuming that the mixture fraction and its dissipation are statistically independent, (b) accounting for their statistical dependence via a shape factor. In both cases (a) and (b) the predicted mean of the fuel mass fraction agreed well with the DNS data. Predictions obtained using approximation (b) were somewhat better than those using approximation (a).

引用

页码：179 / 186

页数：8

共 16 条

[1]

BILGER RW, 1991, F99 U SYDN DEP MECH

[2]

BILGER RW, 1980, TOP APPL PHYS, V44, pCH3

[3] PROBABILITY-DISTRIBUTION OF A STOCHASTICALLY ADVECTED SCALAR FIELD [J].