超声速气流中液体燃料雾化数值模拟

被引：17

作者：

杨顺华

乐嘉陵

机构：

[1] 中国空气动力研究与发展中心

来源：

推进技术 | 2008年 / 05期

关键词：

超燃冲压发动机; 雾化; 超声速; 数值仿真;

D O I：

10.13675/j.cnki.tjjs.2008.05.001

中图分类号：

O359.1 [];

学科分类号：

080704 ;

摘要：

为了模拟超声速气流中液体射流的雾化,发展了一种液滴破碎混合模型。该模型将Kelvin-Helmhotz(K-H)模型和Rayleigh-Taylor(R-T)波动模型耦合在一起,首先计算R-T波增长模型,当R-T模型不能导致液滴破碎时,然后计算K-H波增长模型。利用该模型对来流Ma=1.94的超声速气流中的水射流的雾化进行了数值模拟。模拟结果再现了超声速气流中射流的雾化结构,计算得到的射流穿透深度、颗粒直径分布和速度分布与实验结果吻合较好。

引用

页码：519 / 522

页数：4

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