Estimation of dynamic stability coefficients for aerodynamic decelerators using CFD

Eric C. Stern, Vladimyr M. Gidzak, Graham V. Candler

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

8 Scopus citations

Abstract

A method for performing dynamic simulations of entry vehicles is developed. This capability uses existing infrastructure within the US3D flow solver, developed for doing fluid structure interaction (FSI) simulations, to allow for up to six degree of freedom (6- DoF) simulations. Inviscid, free-to-oscillate simulations of the Mars Science Laboratory (MSL) capsule at Mach 2.5 and 3.5 are used to evaluate different data reduction methods. It is found that many simulations may be required to get reliable data. The computed pitch damping coefficients show comparable trends to ballistic range data, though they differ in magnitude, particularly at high angles of attack. Preliminary viscous simulation results are presented, and show improved agreement with experimental data compared to the inviscid analysis.

Original languageEnglish (US)
Title of host publication30th AIAA Applied Aerodynamics Conference 2012
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
Pages2217-2230
Number of pages14
ISBN (Print)9781624101854
DOIs
StatePublished - Jan 1 2012
Event30th AIAA Applied Aerodynamics Conference 2012 - New Orleans, LA, United States
Duration: Jun 25 2012Jun 28 2012

Publication series

Name30th AIAA Applied Aerodynamics Conference 2012

Other

Other30th AIAA Applied Aerodynamics Conference 2012
CountryUnited States
CityNew Orleans, LA
Period6/25/126/28/12

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