| 高超声速再入体可见、红外辐射特性数值模拟 |
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| 引用本文： | 董士奎 谈和平 等. 高超声速再入体可见、红外辐射特性数值模拟[J]. 红外与毫米波学报, 2002, 21(3): 180-184 |
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| 作者姓名： | 董士奎 谈和平 等 |
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| 作者单位： | 哈尔滨工业大学能源学院,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国家杰出青年科学基金 (批准号 5 972 5 617)，国家自然科学基金资助 (批准号 5 990 60 0 3 )~~ |
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| 摘 要： | 用带有非平衡化学反应源项的粘性激波层方程模拟了高超声速小钝头体零攻角再入段绕流流场，并对壁温边界条件进行了改进，建立了复杂几何形状为求解辐射传递方程的贴体坐标体系下的离散坐标法，与谱带模型相结合求解了小钝头体头身部七组元空气激波层辐射强度场，考查了紫外光谱区（0．2－0．4μm） 、可见光谱区（0．4－0．8μm）及红外光谱区（0．8－2．0μm吸收系数不确定性对辐射场计算结果的影响。
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| 关 键 词： | 高超声速再入体 红外辐射 数值模拟 激波层 流场 飞行试验 空气动力学 辐射强度 吸收系数 化学非平衡 高温空气绕流 小钝头体 |
| 收稿时间： | 2001-10-08 |
| 修稿时间： | 2001-10-08 |
NUMERICAL SIMULATION OF VISIBLE AND INFRARED RADIATION PROPERTIES OF HYPERSONIC REENTRY BODIES |
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| DONG Shi Kui TAN He Ping HE Zhi Hong RUAN Li Ming. NUMERICAL SIMULATION OF VISIBLE AND INFRARED RADIATION PROPERTIES OF HYPERSONIC REENTRY BODIES[J]. Journal of Infrared and Millimeter Waves, 2002, 21(3): 180-184 |
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| Authors: | DONG Shi Kui TAN He Ping HE Zhi Hong RUAN Li Ming |
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| Abstract: | The flow field over hypersonic small blunt bodies at zero incidence were numerically simulated by VSL equations with the nonequilibrium chemical source terms. The boundary condition of the wall temperature was improved. The discrete coordinate method to solve radiation transfer equation under body fitted coordinate system was established. And the 7 species air shock layer radiation field of small blunt head body in reentry was simulated by this method combined with band model. The influence of absorption coefficient error on the computational result of head body radiation field was investigated in the ultraviolet region(0.2～0.4μm), visible region(0.4～0.8μm)and infrared region(0.8～2.0μm). |
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| Keywords: | small blunt reentry bodies high temperature air flow chemical nonequilibrium absorption coefficient radiative intensity. |
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