A comparison of scalar PDF turbulent combustion models

被引：35

作者：

Goldin, GM ^{[1
]}

Menon, S ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Aerosp Engn, Atlanta, GA 30332 USA

来源：

COMBUSTION AND FLAME | 1998年 / 113卷 / 03期

关键词：

D O I：

10.1016/S0010-2180(97)00237-X

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Thermo-chemical scalar probability density functions (pdfs) measured in nonpremixed hydrogen and methane turbulent jet flames are compared a priori with an advanced conventional assumed shape pdf model, as well as a recently proposed constructed pdf model. The constructed pdf, by incorporating the underlying physics of advection by all unsteady eddies, molecular diffusion and chemical reaction, displays consistent and substantial a priori improvement over the conventional assumed shape pdf. In addition, the constructed pdf model may be parameterized by considerably fewer lower moments, and in particular, first moments, promising affordable and accurate implementation in a moment-equation solver. (C) 1998 by The Combustion Institute.

引用

页码：442 / 453

页数：12

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