垂直射流和横流干涉的三元粘性流场的数值计算

Investigation of the Jet-Crossflow Interaction by Solving Fully Three-Dimensional Navier-Stocks Equations

为研究射流-横流干涉所形成的涡在附面层控制中的应用,对垂直射流与横流相干涉的流动,用不可压全三元N-S解,配之以两方程紊流模型作了数值计算。所用方法是基于压力修正原理求解压力扬和使速度满足连续方程的SIMPLE方法。计算是在微机上进行的。得到了流场的速度分布、压力分布等详细数据。与实验结果相比,结果令人满意。所得结果有助于今后分析流场结构和成涡机理。

In order to study the vortices which are generated by the jet-crossflow interaction and may be used as the method of boundary layer control, a fully three-dimensional N-S solution, incorporated with two-equation turbulence model, is obtained by using a microcomputer. The method used is the SIMPLE method which is a finite volume method based on the principle of pressure correction. Detailed data of velocity and pressure distributions are obtained and some of them are given and compared with the experimental data. The comparisons are satisfactory and the method and its results may be used to study the mechanism of the vortex generation.