| 带抑流楔升力前体设计初探 |
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| 引用本文： | 南向军.带抑流楔升力前体设计初探[J].火箭推进,2014(1):50-55. |
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| 作者姓名： | 南向军 |
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| 作者单位： | 西安航天动力研究所,陕西西安710100 |
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| 基金项目： | 国家863项目（2012AA702308） |
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| 摘 要： | 升力前体由于前缘激波不能附着于前体前缘,其上下表面流场存在相互耦合,进而导致其下表面流场存在较强的横向流动,这会对腹部进气系统的设计造成不利影响.为了使前体出口流场能较好地保持二维流动特征,通过在升力前体两侧增加小角度抑流斜楔,以抑制横向流动.这种升力前体及一体化进气系统的数值模拟表明,该升力前体出口流场二维特征良好,采用该前体的进气系统能较好地维持理想的流场结构,并具有较优的性能.
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| 关 键 词： | 升力前体 抑流楔 一体化 数值模拟 |
Design of lift-forebody with transverse flow restraining wedge |
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| NAN Xiang-jun.Design of lift-forebody with transverse flow restraining wedge[J].Journal of Rocket Propulsion,2014(1):50-55. |
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| Authors: | NAN Xiang-jun |
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| Institution: | NAN Xiang-jun ( Xi＇ an Aerospace Propulsion Institute, Xi＇ an 710 100, China) |
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| Abstract: | Because shock wave can not attach to the leading edge of a lift forebody, the upper and lower flowfields are coupled, which induces a strong transverse flow of lower surface flow field. It may cause a negative influence on the belly-sided air inlet system. In order to make the forebody out- let flow field remain 2-D flow feature, small angle restraining wedges are put on both sides of lift forebody so as to restrain the transverse flow. Numerical simulation of the lift forebody and integra- tional inlet system shows that the 2-D feature of the lift forebody outlet flow field is perfect. The air intake system with this kind of forebody can keep the ideal flow-field structure ouite well. |
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| Keywords: | lift forebody cross flow restraining wedge integration numerical simulation |
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