Numerical analysis of multiple jets discharging into a confined cylindrical crossflow

被引：12
|
作者：
Tao, Y
Adler, W
Specht, E
机构：
[1] Otto Von Guericke Univ, Inst Fluid Dynam & Thermodynam, D-39016 Magdeburg, Germany
[2] Natl Univ Sci & Def Technol, Dept Aerosp Technol, Changsha, Peoples R China
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING | 2002年 / 216卷 / E3期
关键词：
computational fluid dynamics (CFD); radial jet injection; mixing in crossflow; temperature trajectory; penetration depth;
D O I：
10.1243/095440802320225383
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A row of jets discharging normally into a confined cylindrical crossflow is numerically investigated using the control-volume-based finite difference method. Interest is focused on determining the relationship between the temperature trajectory and the upstream flow and geometric variables. Parameter variations studied include nozzle diameter, number of nozzles, duct radius, jet and mainstream volume-flow, temperature ratio, and dynamic pressure ratio. The dynamic pressure ratio, the number of nozzles, and nozzle spacing are found to be significant variables. A logarithmic function describing the relationship between penetration depth and dynamic pressure divided by the square of the number of nozzles is derived by fitting the data of the computation results. The values for penetration depth and nozzle spacing are described for optimum mixing. A suggested design procedure is presented, which can be used as a first approach in configuration design.
引用
收藏
页码：173 / 180
页数：8
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