透气性对超音速降落伞稳定性的影响

IF 0.8 Q3 ENGINEERING, AEROSPACE

Aviation Pub Date : 2021-08-20 DOI:10.3846/aviation.2021.15131

Xue Yang

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引用次数: 0

摘要

建立了一个可压缩空气渗透率模型来模拟超音速多孔雨棚的气动性能。并应用单自由度模型对降落伞的静态稳定性进行了分析。利用该方法，得到了大攻角降落伞系统的流动结构。比较了多孔和无孔伞罩的气动力矩系数，讨论了透气性对超音速降落伞稳定性的影响。数值结果表明，有空气渗透系统的气动力矩系数比无空气渗透系统具有更大的振荡幅度和数值。该方法可作为初步选择超音速降落伞的一种潜在方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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EFFECT OF AIR PERMEABILITY ON STABILITY OF SUPERSONIC PARACHUTE

A compressible air permeability model is developed to simulate the aerodynamic performance of the supersonic porous canopy. And a single-degree-of-freedom model is applied to analyse the static stability of the parachute. By using this method, the flow structure of the parachute system with big attack angle is obtained. The aerodynamic moment coefficients of porous and nonporous canopies are compared to discuss the effect of air permeability on stability of the supersonic parachute. The numerical results show that aerodynamic moment coefficient of the system with air permeability has larger oscillation amplitude and value than that without air permeability. This method can be developed as a potential method to select the supersonic parachute initially.

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来源期刊

Aviation ENGINEERING, AEROSPACE-

CiteScore

2.40

自引率

10.00%

发文量

审稿时长

15 weeks

期刊介绍： CONCERNING THE FOLLOWING FIELDS OF RESEARCH: ▪ Flight Physics ▪ Air Traffic Management ▪ Aerostructures ▪ Airports ▪ Propulsion ▪ Human Factors ▪ Aircraft Avionics, Systems and Equipment ▪ Air Transport Technologies and Development ▪ Flight Mechanics ▪ History of Aviation ▪ Integrated Design and Validation (method and tools) Besides, it publishes: short reports and notes, reviews, reports about conferences and workshops