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| 吸气式高超声速飞行器三维后体尾喷管优化设计 | |
| 引用本文： | 贺旭照,倪鸿礼,周正,乐嘉陵,宋文艳.吸气式高超声速飞行器三维后体尾喷管优化设计[J].推进技术,2009,30(6):687-690,716. |
| 作者姓名： | 贺旭照 倪鸿礼 周正 乐嘉陵 宋文艳 |
| 作者单位： | 1. 西北工业大学动力与能源学院,陕西西安,710072;中国空气动力研究与发展中心,四川,绵阳,621000 2. 中国空气动力研究与发展中心,四川,绵阳,621000 3. 西北工业大学动力与能源学院,陕西西安,710072 |
| 摘 要： | 三维后体尾喷管是吸气式高超声速飞行器产生推力、升力的关键部件,需要精细设计,最大限度地提升三维膨胀过程中的气动特性。本文在二维后体尾喷管优化设计的基础上,发展了一种三维后体尾喷管的优化设计方法。通过参数化建模、三维喷管计算网格自动生成、空间推进CFD解算器及NSGA-II多目标优化软件等技术手段,对后体尾喷管三维构型进行了多目标优化设计。优化后的三维后体尾喷管与原始喷管相比,推力和升力都得到了较大提升。 |
| 关 键 词： | 高超声速飞行器 三维后体尾喷管 多目标优化 空间推进算法 |
3D afterbody nozzle optimization of air-breathing hypersonic vehicle |
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| HE Xu-zhao,NI Hong-li,ZHOU Zheng,LE Jia-ling and SONG Wen-yan.3D afterbody nozzle optimization of air-breathing hypersonic vehicle[J].Journal of Propulsion Technology,2009,30(6):687-690,716. | |
| Authors: | HE Xu-zhao NI Hong-li ZHOU Zheng LE Jia-ling and SONG Wen-yan |
| Institution: | 1 (1.School of Power and Energy, Northwestern Polytechnical Univ., Xi’an 710072, China; 2.China Aerodynamics Research and Development Center, Mianyang 621000, China) |
| Abstract: | 3D after-body nozzle of air-breathing hypersonic vehicle is a main part for generating thrust and lift. It needs careful design to maximum aerodynamic expansion characteristic. Based on 2D after-body nozzle optimization method, a 3D after-body nozzle optimization method is developed. Combining parameterized shape generating, 3D nozzle computation grid auto-generation, matured 3D space-marching CFD solver and NSGAⅡ multi-objects optimization techniques, 3D nozzle configuration is optimized in multi-objective way. The nozzle thrust and lift have been improved after optimization. |
| Keywords: | Hypersonic vehicle 3D after-body nozzle Multi-objects optimization Space marching algorithm |
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