VORTICITY GENERATION IN JET DIFFUSION FLAMES

被引：22

作者：

CHEN, LD

ROQUEMORE, WM

GOSS, LP

VILIMPOC, V

机构：

[1] WRDC AGRO PROPULS & POWER LAB,WRIGHT PATTERSON AFB,OH 45433

[2] SYST RES LABS INC,DIV ARVIN CALSPAN,DAYTON,OH 45440

来源：

COMBUSTION SCIENCE AND TECHNOLOGY | 1991年 / 77卷 / 1-3期

关键词：

VORTICITY; TURBULENT JET DIFFUSION FLAMES; NON-PREMIXED JET FLAMES;

D O I：

10.1080/00102209108951719

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A novel method to analyze the vorticity generation or destruction in jet diffusion flames is presented. The analysis employs a generic flame structure and a single conserved scalar to examine the vorticity generation or destruction in jet diffusion flames. The analysis shows that the volumetric expansion and baroclinicity can result in vorticity destruction or generation depending on the flame structure, or the stoichiometry. Three regimes concerning vorticity generation or destruction are identified for jet diffusion flames. The analysis also defines a non-dimensional parameter, describing the relative importance of baroclinicity to volumetric expansion. The parameter is the ratio of Reynolds number to Froude number and multiplied by the square root of the Schmidt number. © 1991, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：41 / 57

页数：17