SCALAR TRANSPORT IN A TURBULENT JET

被引：10
|
作者：
SANDERS, JPH
LAMERS, APGG
机构：
[1] Eindhoven Univ of Technology, Eindhoven, Netherlands
来源：
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 1992年 / 19卷 / 06期
关键词：
D O I：
10.1016/0735-1933(92)90020-I
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A model equation for the scalar dissipation rate, based on the Two Scale Direct Interaction Approximation (TSDIA) of Yoshizawa [1] was solved and applied to a turbulent round jet in conjunction with turbulence modelling based on the eddy viscosity and diffusivity. The model coefficients were adjusted by using a similarity analysis for the round jet. This led to an improvement in the prediction of concentration fluctuations on the axis of a jet with respect to results obtained with the equal length scales model. The turbulent Schmidt number, no longer assigned an ad-hoc constant value, displays experimentally observed behaviour in the jet.
引用
收藏
页码：851 / 858
页数：8
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