Numerical Simulation of Hypersonic Thermochemical Nonequilibrium Blunt Body Flows

Journal of Propulsion Technology ›› 2014, Vol. 35 ›› Issue (12): 1585-1591.

School of Aeronautics and Astronautics/State Key Laboratory of Structural Analysis for Industrial Equipment，Dalian University of Technology，Dalian 116024，China,School of Aeronautics and Astronautics/State Key Laboratory of Structural Analysis for Industrial Equipment，Dalian University of Technology，Dalian 116024，China,School of Aeronautics and Astronautics/State Key Laboratory of Structural Analysis for Industrial Equipment，Dalian University of Technology，Dalian 116024，China and School of Aeronautics and Astronautics/State Key Laboratory of Structural Analysis for Industrial Equipment，Dalian University of Technology，Dalian 116024，China; Science and Technology on Scramjet Laboratory，Beijing Power Machinery Institute，Beijing 100074，China

Published:2021-08-15

高超声速热化学非平衡钝体绕流数值模拟 *

杨　恺¹,原志超¹,朱强华¹,高效伟^1,2

大连理工大学工业装备结构分析国家重点实验室/航空航天学院，辽宁大连 116024,大连理工大学工业装备结构分析国家重点实验室/航空航天学院，辽宁大连 116024,大连理工大学工业装备结构分析国家重点实验室/航空航天学院，辽宁大连 116024,大连理工大学工业装备结构分析国家重点实验室/航空航天学院，辽宁大连 116024; 北京动力机械研究所高超声速冲压发动机技术重点实验室，北京 100074

作者简介:杨　恺(1982—)，男，博士，讲师，研究领域为高超声速气动热及热防护。E-mail:kyang@dlut.edu.cn 作者简介:朱强华(1980—)，男，博士，讲师，研究领域为发动机涡轮叶片流动换热。
基金资助:
国家自然科学基金(11172055；11202045)；中国博士后科学基金和中央高校基础科研基金(DUT11ZD(G)01)；基本科研业务费专项资金。

Abstract

Abstract: Based on the study of hypersonic thermochemical nonequilibrium flow around a blunt body，hypersonic aerothermal simulation method is developed. The second-order accuracy windward TVD format finite volume method of structure grid solver can solve Euler or Navier-Stokes equations， with the solver considering the five components in air and chemical nonequilibrium effect. Vibrational and chemical source terms are calculated implicitly which improves the calculation efficiency. Sphere cone and RAM-CII numerical examples are given on thermochemical nonequilibrium aerothermal simulation. The flow field are discussed with different nonequilibrium models and the computational results show the high accuracy based on comparison with the existing experimental data.

Key words: Hypersonic；Thermochemical nonequilibrium；TVD scheme；Numerical simulation

摘要： 对高超声速热化学非平衡钝体绕流进行研究，发展了高温热化学非平衡条件下的高超声速气动热数值模拟方法。采用二阶精度迎风TVD格式的N-S方程有限体积法多块结构网格求解器，考虑了空气5组分及化学非平衡效应的影响，对组分生成源项及振动能源项采用了点隐式的处理，提高了计算效率。对球锥模型和RAM-CII飞行实验等算例进行了数值气动热模拟，分析了不同非平衡模型在热化学非平衡条件下流场的影响。计算结果表明建立的数值模拟方法具有较高的精度。

关键词: 高超声速；热化学非平衡；TVD格式；数值模拟

YANG Kai¹,YUAN Zhi-chao¹,ZHU Qiang-hua¹,GAO Xiao-wei^1,2. Numerical Simulation of Hypersonic Thermochemical Nonequilibrium Blunt Body Flows[J]. Journal of Propulsion Technology, 2014, 35(12): 1585-1591.

杨　恺,原志超,朱强华,高效伟. 高超声速热化学非平衡钝体绕流数值模拟 *[J]. 推进技术, 2014, 35(12): 1585-1591.

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[16] 潘沙. 高超声速气动热数值模拟方法及大规模并行计算研究[D]. 长沙:国防科学技术大学, 2010.(编辑:梅瑛)　　　　　　　　　　　　　*　收稿日期:2013-12-05；修订日期:2014-02-21。基金项目:国家自然科学基金(11172055；11202045)；中国博士后科学基金和中央高校基础科研基金(DUT11ZD(G)01)；基本科研业务费专项资金。作者简介:杨恺(1982—),男,博士,讲师,研究领域为高超声速气动热及热防护。E-mail:kyang@dlut.edu.cn 作者简介:朱强华(1980—),男,博士,讲师,研究领域为发动机涡轮叶片流动换热。E-mail:qhzhu@dlut.edu.cn