An Experimental Study on the Mixing of Inclined Heated Jets with a Cold Crossflow

被引：0

作者：

K.S.Chen ^{[1
]}

Y.R.Cheng ^{[1
]}

机构：

[1] National Sun Yat-San University

来源：

Journal of Thermal Science | 1993年 / 04期

关键词：

momentum flux ratio; jet half-width; jet penetration depth; jet circulation depth;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

An experimental study is presented for the mixing of one-and dual-line heated jets injected at 60° anglewith x-axis into a cold crossflow in a rectangular channel.Measurements of the mean temperature,velocity,and turbulence intensity together with the flow visualization were performed.Self-similarforms for the dimensionless vertical temperature profiles were found.Parametric variations characterizingthe mixing processes of the temperature and velocity fields were examined and correlated interms of the momentum flux ratio and downstream distance.Results show that both the thermal andvelocity penetration depths increase with increasing momentum flux ratio and downstream distance.The turbulence intensity is strong within the region of jet half-width,and the maximum value occursat a point close to the jet velocity trajectory.

引用

页码：237 / 247

页数：11