| 二元收扩喷管气动方案优化设计 |
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| 引用本文： | 宁怀松,张志学,邵万仁,邓洪伟.二元收扩喷管气动方案优化设计[J].航空发动机,2014,40(3):52-55. |
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| 作者姓名： | 宁怀松 张志学 邵万仁 邓洪伟 |
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| 作者单位： | 中航工业沈阳发动机设计研究所，沈阳 110015 |
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| 基金项目： | 航空动力基础研究项目资助 |
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| 摘 要： | 为掌握二元收扩喷管气动特性和设计方法,通过数值模拟方法对采用超椭圆方程进行圆转方过渡的小宽高比二元收扩喷管进行研究。计算分析了喉道宽高比、圆转方段长度、收敛调节片长度及扩张调节片长度4个参数对二元收扩喷管气动性能的影响,通过对上述4个参数的优化得出了综合性能较优的二元收扩喷管气动方案。研究结果表明:经过适当优化,二元收扩喷管能够满足工程应用要求,同时,鉴于其在隐身和矢量推进等方面的优势,有必要对其开展更加深入地研究。
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| 关 键 词： | 二元收扩喷管 圆转方段长度 喉道宽高比 优化设计 航空发动机 |
Internal Performance Optimization of 2D-CD Nozzle |
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| Authors: | NING Huai-song ZHANG Zhi-xue SHAO Wan-ren DENG Hong-wei |
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| Institution: | AVIC Shenyang Engine Design and Research Institute, Shenyang 110015, China |
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| Abstract: | To master internal performance and design method of 2D-CD nozzle, the internal performance of 2D-CD nozzle was investigated by numerical simulation method. The effects of nozzle parameters such as throat aspect ratio, flaps length and the circular-to-rectangular transition duct length were calculated and analyzed. The internal performance project of 2D-CD nozzle of better comprehensive properties was obtained by optimization of four parameters. The resuls show that 2D-CD nozzle can meet engineering application through proper optimization, and the deep investigation is necessary for advantages in thrust vectoring and stealth |
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| Keywords: | 2D-CD nozzle circular-to-rectangular transition duct length throat aspect ratio optimization aeroengine |
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