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| 栅格绕流数值模拟研究 | |
| 引用本文： | 吴晓军,陈红全,邓有奇,马自华.栅格绕流数值模拟研究[J].空气动力学学报,2009,27(1). |
| 作者姓名： | 吴晓军 陈红全 邓有奇 马自华 |
| 作者单位： | 1. 南京航空航天大学航空宇航学院,江苏,南京,210016;中国空气动力研究与发展中心计算空气动力研究所,四川,绵阳,621000 2. 南京航空航天大学航空宇航学院,江苏,南京,210016 3. 中国空气动力研究与发展中心计算空气动力研究所,四川,绵阳,621000 |
| 摘 要： | 栅格长宽比是影响栅格翼气动特性的重要参数,为研究它对栅格翼气动特性的影响规律,本文通过求解NS方程数值模拟研究单栅格长宽比对栅格气动特性的影响,并且对栅格边框厚度和形状对阻力的影响,在亚、跨、超声速多个马赫数下进行了数值模拟.结果显示,在所选择的长宽比范围内,长宽比对阻力的影响不大,对法向力有明显的影响,选择适当的栅格边框外形和厚度,可以大大减小栅格的阻力. |
| 关 键 词： | 栅格翼 长宽比 激波反射 |
CFD analysis of grid fins |
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| WU Xiao-jun,CHENG Hong-quan,DENG You-qi,MA Zhi-hua.CFD analysis of grid fins[J].Acta Aerodynamica Sinica,2009,27(1). | |
| Authors: | WU Xiao-jun CHENG Hong-quan DENG You-qi MA Zhi-hua |
| Institution: | 1.College of Aerospace Engineering;Nanjing University of Aeronautics and Astronautics;Nanjing 210016;China;2.China Aerodynamics Research and Development Center;Mianyang Sichuan 621000;China |
| Abstract: | This paper presents the results of a study to demonstrate an approach for using viscous computational fluid dynamic coefficients for grid fins.Seven different frame cross-section were modeled to research the effects of outer frame cross-section shape and web thickness.The results obtained indicate that frame cross-section shape and web thickness have a significant effect on grid fin drag characteristics at all mach numbers.From the results presented in this paper,the observation is made that grid fins drag ... |
| Keywords: | grid fin high to length ratio shock wave reflect |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |