| 刘拓,李若白,任智毅,岳岩松,郝予琛,许泉,陈俊铭.气动加热对流换热系数随壁温变化研究[J].装备环境工程,2025,22(5):84-91. LIU Tuo,LI Ruobai,REN Zhiyi,YUE Yansong,HAO Yuchen,XU Quan,CHEN Junming.Variation of Convective Heat Transfer Coefficient with Wall Temperature in Aerodynamics Heating[J].Equipment Environmental Engineering,2025,22(5):84-91. |
| 气动加热对流换热系数随壁温变化研究 |
| Variation of Convective Heat Transfer Coefficient with Wall Temperature in Aerodynamics Heating |
| 投稿时间：2025-02-24 修订日期：2025-03-31 |
| DOI：10.7643/issn.1672-9242.2025.05.012 |
| 中文关键词: 气动加热 壁面温度 冷壁热流 流动/传热耦合 对流换热系数 温度响应中图分类号:V411.3 文献标志码:A 文章编号:1672-9242(2025)05-0084-08 |
| 英文关键词:aerodynamic heating wall temperature cold wall heat flux flow/heat transfer coupling convective heat transfer coefficient thermal response |
| 基金项目:国家重点研发计划(2023YFB4605705)；国防基础科研计划项目(JCKY2023XXX)；中国航天科技集团钱学森青年创新基金(QXSCXJJ2023048) |
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| Author | Institution |
| LIU Tuo | Shanghai Electro-Mechanical Engineering Institute, Shanghai 201109, China |
| LI Ruobai | Shanghai Electro-Mechanical Engineering Institute, Shanghai 201109, China |
| REN Zhiyi | Shanghai Electro-Mechanical Engineering Institute, Shanghai 201109, China |
| YUE Yansong | Shanghai Electro-Mechanical Engineering Institute, Shanghai 201109, China |
| HAO Yuchen | Shanghai Electro-Mechanical Engineering Institute, Shanghai 201109, China |
| XU Quan | Shanghai Electro-Mechanical Engineering Institute, Shanghai 201109, China |
| CHEN Junming | Shanghai Electro-Mechanical Engineering Institute, Shanghai 201109, China |
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| 中文摘要: |
| 目的 获得更加精确的飞行器气动加热计算结果，开展气动加热过程中随壁面温度升高的对流换热系数研究。方法 以典型的圆柱前缘气动加热过程为对象，采用流动/传热紧耦合方法模拟该物理过程，研究对流换热系数随壁面温度升高(294.4~1 100 K)的变化情况，并与稳态冷壁计算结果进行对比。结果 随着壁面温度升高，对流换热系数先骤降至最低值，随后迅速增大，最后变化趋于平缓，其最大变化率为–8.8%，变化率最大值出现在壁温为300~340 K时，远离驻点变化率呈减小趋势。与流动/传热紧耦合方法相比，稳态计算的冷壁对流换热系数普遍偏高，其最大误差为11.2%。结论 随着壁面温度升高，对流换热系数出现较大变化，以固定冷壁对流换热系数进行温度计算时需要考虑修正。 |
| 英文摘要: |
| The work aims to study the convective heat transfer coefficient during the heating process as the wall temperature increases to obtain more accurate results for the aerodynamic heating of vehicles. The flow/heat transfer coupled method was used to simulate the physical process of a typical cylindrical anterior flange aerodynamic heating. The changes in the convective heat transfer coefficient as the wall temperature increased (from 294.4 K to 1 100 K) were investigated and compared with the steady-state cold wall calculation results. As the wall temperature increased, the convective heat transfer coefficient decreased dramatically, and then increased rapidly with the maximum change rate of –8.8%. The maximum change appeared when the wall temperature was 300-340 K, and the change away from the stagnation point tended to decrease. Compared with the flow/heat transfer coupling method, the maximum error of the cold wall heat transfer coefficient in the steady state was 11.2%. As the wall temperature increases, the convective heat transfer coefficient changes significantly. When calculating the temperature with a fixed cold wall convective heat transfer coefficient, it is necessary to consider correction. |
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