Investigation of computational flow field over a re-entry capsule at high speed

马赫数 航空航天工程 空气动力学 高超音速 唤醒 冲击波 超音速 机械 弓激波(空气动力学) 船员 物理 工程类 模拟 航空学
作者
S. Rathnavel,K. Balaji,Pankaj Kumar,Raja Sathesh,Kamesh Sankaran
出处
期刊:FME Transactions [Faculty of Agronomy in Čačak]
卷期号:48 (3): 551-556 被引量:1
标识
DOI:10.5937/fme2003551r
摘要

Manned space programme has become inevitable in the modern world. One important aspect in such endeavors is getting the crew back to home safe and sound. Re-entry capsules are widely used for bringing back astronauts back to the Earth. The re-entry mission is a very crucial one, with speeds up to 30 times than that of sound and temperatures hot enough to ionize air. The study and design of a re-entry capsule has to be done with utmost concern over the life of returning astronauts. In this paper, simulations carried out over a re-entry vehicle for various free-stream conditions such as subsonic, supersonic and hypersonic flow regimes. Results were obtained by solving compressible Navier-Stokes equation with k-omega turbulent model. Simulations were carried out for various inlet conditions corresponding to an altitude of a re-entry vehicle by using CFD code SU2. The geometrical parameters of a re-entry vehicle such as spherical nose radius and cone angle were varied and the effects of the aerodynamic phenomena such as shock wave, flow separation and wake formation over a downstream of a module were studied. In this paper, the results pertaining to the pressure distribution, the Mach contour and temperature over a module is presented.
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