基于湍动能亚格子模型的大涡模拟方法的超音速流场数值模拟

来源 :第十五届全国计算流体力学会议 | 被引量 : 0次 | 上传用户：jjjjjjj7

【摘要】

：

本文基于结构对接网格／有限体积方法，采用可压缩大涡模拟方法求解N-S方程，对Mach=2.46，Re=1e6的圆柱超音速流场进行数值模拟，计算采用Schumann亚格子模型湍动能模式对小尺度涡作用进行模拟，数值模拟出了超音速底部流动的分离涡、膨胀波与再压缩激波等现象，从速度型以及压力分布看，采用的大涡模拟方法获取了较为可靠的数值模拟结果，为超音速底部流动的数值模拟提供了准确的数值模拟程序。

【作者】

：

黄江涛高正红白俊强周铸赵轲

【机构】

：

中国空气动力研究与发展中心总体技术部 621000 中国空气动力研究与发展中心总体技术部 621000

【出处】

：

第十五届全国计算流体力学会议

【发表日期】

：

2012年3期

【关键词】

：

飞行器计算空气动力学湍动能亚格子模型可压缩大涡模拟

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