超大型组合翼伞与超大型连续翼伞的气动性能对比分析
Comparative Analysis of Aerodynamic Performance between Oversize Modular Parafoil and Oversize Continuous Parafoil
段非 1张红英 1李正达 2陆伟伟2
作者信息
- 1. 南京航空航天大学航空学院飞机设计技术研究所,南京 210016
- 2. 航宇救生装备有限公司,襄阳 441003
- 折叠
摘要
随着航天回收系统应用需求越来越广,回收物质量也越来越大,对翼伞面积的要求越来越高,超大型翼伞开始受到广泛的关注,然而目前国内外对超大型翼伞的研究较少.对此,文章以超大型连续翼伞和超大型组合翼伞为研究对象,分别对其进行物理建模.采用计算流体力学(Computational Fluid Dynamics,CFD)的方法,基于k-epsilon湍流模型,分别计算在无下拉、单侧下拉、双侧下拉时超大型连续伞和超大型组合伞的气动特性.研究发现,超大型组合伞在组合处有很明显的气流补充,可以减缓流动分离的情况,增大失速迎角,更适合大攻角的飞行任务,适用范围更广.研究成果可以为以后超大型翼伞的选型提供一定的参考.
Abstract
With the increasing demand for aerospace recovery system applications,the recovery mass is increasing,the requirement of parafoil area is becoming increasingly high,and oversize parafoils are paid more and more attention.However,there is not enough research on oversize parafoil at home and abroad.This paper intends to establish the physical model of oversize modular parafoil and oversize continuous parafoil.Based on the k-epsilon turbulence model,the CFD method is deployed to calculate the aerodynamic features of continuous parafoil and modular parafoil under the conditions of no pull-down,single side pull-down and double side pull-down respectively.Results show that there is obviously air supplement in the modular parafoil,which can improve the flow separation,and increase the stall angle of attack.Therefore,the oversize modular parafoil are more suitable for the flight mission with high attack angle and have a wider range of applications.This paper can provide some reference for the selection of oversize parafoils in the future.
关键词
冲压式翼伞/超大型组合翼伞/超大型连续翼伞/气动特性/计算流体力学Key words
parafoil/oversize parafoil/modular parafoil/aerodynamic characteristics/Computational Fluid Dynamics(CFD)引用本文复制引用
基金项目
航空科学基金(2023M030010002)
出版年
2024
NETL
NSTL
万方数据