Development of Reentry Vehicle with Inflatable Structure using Aerodynamic Force

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560979
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Aerospace engineering
• Research Institution: Ryukoku University
• Principal Investigator: OTSU Hirotaka 龍谷大学, 理工学部, 准教授 (20313934)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 再突入飛行体 / 衝撃波 / バルート

Outline of Final Research Achievements

In this study, we investigated the aerodynamic characteristics of the reentry vehicle with the inflatable structure using the lift force by using CFD analyses and wind tunnel experiments. The numerical and experimental results suggest that in the case of the torus shape if the dimension of the inflatable structure is designed so that the wake flow of the reentry vehicle is located inside the torus to avoid the shock-shock interactions the attitude of the inflatable structure connected to the reentry vehicle by the cables is stable in the hypersonic flow regime. Additionally, in the case of the supersonic, transonic, and subsonic flow regime, the attitude was not so sensitive to the dimension of the inflatable structure.

Free Research Field

航空宇宙工学