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

Kostas Karagiozis, Fehmi Cirak, Ramji Kamakoti, Carlos A Pantano-Rubino, Vladimyr Gidzak, Ioannis Nompelis, Keith Stein, Graham V. Candler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publication20th AIAA Aerodynamic Decelerator Systems Technology Conference
StatePublished - Dec 1 2009
Event20th AIAA Aerodynamic Decelerator Systems Technology Conference - Seattle, WA, United States
Duration: May 4 2009May 7 2009

Publication series

Name20th AIAA Aerodynamic Decelerator Systems Technology Conference

Other

Other20th AIAA Aerodynamic Decelerator Systems Technology Conference
Country/TerritoryUnited States
CitySeattle, WA
Period5/4/095/7/09

ASJC Scopus subject areas

  • Aerospace Engineering
  • Electrical and Electronic Engineering

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