Navier-stokes solutions with surface catalysis for martian atmospheric entry

Y. K. Chen, W. D. Henline, D. A. Stewart, G. V. Candler

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

7 Scopus citations

Abstract

In this study numerical solutions have been obtained for two- dimensional axisymmetric hypersonic nonequilib-rium CO2 flow over a high angle blunt cone with appropriate surface boundary conditions to account for energy and mass conservation at the body surface. The flowfield is described by the Navier-Stokes equations and multi- component conservation laws which account for both translational and internal vibrational nonequilibriurn effects. Complete forebody solutions have been obtained for the peak heating point of the Mars entry trajectory specified in the proposed NASA MESUR (Mars Environmental Survey) project. In these solutions, radiative equilibrium wall temperature and surface heating distributions are determined over the MESUR aeroshell forebody for entry velocity equal to 7 km/sec with varying degrees of surface catalysis. The effects of gas kinetics, surface catalysis, transport properties, and vibrational relaxation times on the surface heating are examined. The results identify some important issues in the prediction of surface heating for flows in thermo-chemical nonequilibriurn and show that the Navier Stokes code used herein is effective for thermal protection system design and materials selection.

Original languageEnglish (US)
Title of host publicationAIAA 27th Thermophysics Conference, 1992
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
StatePublished - Jan 1 1992
EventAIAA 27th Thermophysics Conference, 1992 - Nashville, United States
Duration: Jul 6 1992Jul 8 1992

Other

OtherAIAA 27th Thermophysics Conference, 1992
CountryUnited States
CityNashville
Period7/6/927/8/92

Fingerprint Dive into the research topics of 'Navier-stokes solutions with surface catalysis for martian atmospheric entry'. Together they form a unique fingerprint.

Cite this