C-γ-Reθ高超声速三维边界层转捩预测模型  

C-γ-Re_(θ) model for hypersonic three-dimensional boundary layer transition prediction

作　　者：向星皓 张毅锋[1] 袁先旭[1] 涂国华[1] 万兵兵 陈坚强[1,2] XIANG Xinghao;ZHANG Yifeng;YUAN Xianxu;TU Guohua;WAN Bingbing;CHEN Jianqiang(State Key Laboratory of Aerodynamics,China Aerodynamics Research and Development Center,Mianyang 621000,China;Computational Aerodynamics Institute,China Aerodynamics Research and Development Center,Mianyang 621000,China)

机构地区：[1]中国空气动力研究与发展中心空气动力学国家重点实验室,绵阳621000 [2]中国空气动力研究与发展中心计算空气动力研究所,绵阳621000

出　　处：《航空学报》2021年第9期188-196,共9页Acta Aeronautica et Astronautica Sinica

基　　金：国家重点研发计划(2016YFA0401200);国家数值风洞工程;国家自然科学基金(11872370,12002355)。

摘　　要：针对国家数值风洞(NNW)工程高超声速三维边界层转捩预测需求,开展了高超声速边界层横流转捩判据及模型研究。采用线性稳定性分析eN方法对高超声速转捩数据进行扩展,结合横流强度与表面粗糙度构造当地化的高超声速横流转捩判据,对基于Chant 2.0计算平台的高超声速修正γ-Reθ转捩模型进行了横流模式拓展,建立了适用于高超声速三维边界层横流转捩预测的C-γ-Reθ转捩模型。采用构建的转捩模型对多状态下的高超声速尖锥进行横流转捩预测,取得了与试验结果符合较好的预测效果。To meet the need for hypersonic three-dimensional boundary layer transition prediction for the National Numerical Windtunnel(NNW)Project,we study the hypersonic cross-flow transition criterion and the transition model.The hypersonic database is expanded using the linear stability theory of the eN method,a fully-localized hypersonic cross-flow transition criterion constructed combining the cross flow strength and surface roughness,a cross-flow extension of the hypersonic modifiedγ-Reθtransition model conducted based on the Chant 2.0 computing platform,and a C-γ-Reθtransition model suitable for hypersonic 3D boundary layer transition prediction established.The transition model is used to predict the cross-flow transition on hypersonic sharp cones in multiple states,and the predicted results are in good accordance with the experimental results.

关 键 词：国家数值风洞工程 高超声速流动 三维边界层 横流转捩 转捩模型 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]