摘要
本文从非定常全ＮＳ方程出发，运用时间推进方法，采用有限体积方法离散控制方程，模拟了轴对称钝锥尾喷流场与外流场的干扰，得到了随时间发展的精细的流场拓扑结构，并对几种出口压力比的不同情况进行了比较和分析。
The numerical calculation of the unsteady full NavierStokes equations by means of timemarching is discussed in this thesis.To simulate jet wake and main flowfield's diturbance of axisymmetric blunt body,the finite volume method is used in the governing equations.The numerical results of timemarching give some fine topological structure of near wake.In addtion we make comparison and analysis in some different ratioes of pressure.
出处
《国防科技大学学报》
EI
CAS
CSCD
1998年第3期18-22,共5页
Journal of National University of Defense Technology
关键词
拓扑结构
尾喷流场
外流场
干扰
数值模拟
topological structure,limited ring,chaotic phenomenon,finitevolume,timemarching method
