摘要
采用空间五阶精度紧致-WENO混合格式,数值模拟了Mc=0.2和1.0的二维空间发展超音速平板混合层被动标量混合过程。并与Clemens的实验结果进行比较,结果表明,被动标量时均值与实验结果符合很好,而被动标量脉动均方根值与实验值相比较小。还研究了可压缩性对标量混合过程的影响,随着对流马赫数的增加,被动标量时均值剖面变化不大,而脉动均方根峰值增大。
The fifth-order in space hybrid compact-WENO scheme is used to investigate passive scalar mixing in the two dimensional spatially evolving supersonic mixing layers. The convective numbers are 0.2 and 1.0. Compared with the Clemens＇s experimental data, the results show that the mean profile of passive scalar corresponds well with the experimental results, but the RMS value is lower. The compressibility effects on the passive scalar mixing are also investigated. With the convective numbers increasing, the mean profiles change slightly, while the peak RMS values increase.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2009年第8期1423-1426,共4页
Journal of Engineering Thermophysics
