| 高升阻比乘波构型优化设计 |
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| 引用本文： | 耿永兵,刘宏,雷麦芳,王发民. 高升阻比乘波构型优化设计[J]. 力学学报, 2006, 38(4): 540-546. DOI: 10.6052/0459-1879-2006-4-2005-021 |
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| 作者姓名： | 耿永兵 刘宏 雷麦芳 王发民 |
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| 作者单位： | 中国科学院力学研究所高温气体动力学重点实验室,北京,100080;中国科学院力学研究所高温气体动力学重点实验室,北京,100080;中国科学院力学研究所高温气体动力学重点实验室,北京,100080;中国科学院力学研究所高温气体动力学重点实验室,北京,100080 |
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| 基金项目： | 国家自然科学基金资助项目（90405012）. |
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| 摘 要： | 在M∞ =6, 30km高空条件下，以升阻比为目标函数，进行了锥形流乘波体的黏性优化设计，讨论了影响乘波体升阻比的因素，并对优化结果进行了数值验证. 结果表明：对于升阻比最大的黏性优化乘波体，存在最优圆锥角使得源自该基本流场的乘波体升阻比最大；摩阻和波阻处于同一量级；体积率、细长比和展长比都随着基本流场圆锥角的增大而增大.
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| 关 键 词： | 乘波体 优化设计 气动力 升阻比 |
| 文章编号： | 0459-1879（2006）04-0540-07 |
| 收稿时间： | 2005-01-10 |
| 修稿时间： | 2006-04-04 |
Optimized design of waverider with high lift over drag ratio |
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| Geng Yongbing,Liu Hong,Lei Maifang,Wang Famin. Optimized design of waverider with high lift over drag ratio[J]. chinese journal of theoretical and applied mechanics, 2006, 38(4): 540-546. DOI: 10.6052/0459-1879-2006-4-2005-021 |
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| Authors: | Geng Yongbing Liu Hong Lei Maifang Wang Famin |
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| Abstract: | A family of optimized hypersonic waverider derived fromconical flow fields is generated and studied; the detailed viscous effectsare included within the optimization process using the referencetemperature methods. A non-linear simplex method is used to find thewaverider configuration for the maximum lift over drag ratio, viscousoptimization is completed at Mach number 6, attitude 30km, andcone angle from 5^{circ} to 10^{circ}. Shapes of waveriderwith high lift over drag ratio are obtained, and the resultsare verified with CFD. The results show that for the optimized designwaverider, the lift over drag ratio of waverider is the maximum at acertain cone angle; the skin friction drag and wave drag are nearlyequal; volumetric efficiency, slenderness,span over length ratio increase with the cone angle. |
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| Keywords: | waverider optimized design aerodynamics lift over drag ratio |
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