CUED Publications database

Computational fluid-structure interaction methods for simulation of inflatable aerodynamic decelerators

Karagiozis, K and Cirak, F and Cirak, F and Kamakoti, R and Pantano, C and Gidzak, V and Nompelis, I and Stein, K and Stein, K and Candler, GV (2009) Computational fluid-structure interaction methods for simulation of inflatable aerodynamic decelerators. 20th AIAA Aerodynamic Decelerator Systems Technology Conference.

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Inflatable aerodynamic decelerators have potential advantages for planetary re-entry in robotic and human exploration missions. It is theorized that volume-mass characteristics of these decelerators are superior to those of common supersonic/subsonic parachutes and after deployment they may suffer no instabilities at high Mach numbers. A high fidelity computational fluid-structure interaction model is employed to investigate the behavior of tension cone inflatable aeroshells at supersonic speeds up to Mach 2.0. The computational framework targets the large displacements regime encountered during the inflation of the decelerator using fast level set techniques to incorporate boundary conditions of the moving structure. The preliminary results indicate large but steady aeroshell displacement with rich dynamics, including buckling of the inflatable torus that maintains the decelerator open under normal operational conditions, owing to interactions with the turbulent wake. Copyright © 2009 by the American Institute of Aeronautics and Astronautics, Inc.

Item Type: Article
Divisions: Div D > Structures
Depositing User: Cron job
Date Deposited: 16 Jul 2015 14:12
Last Modified: 04 Sep 2015 02:22