Atmospheric Reentry Dynamics of Conic Objects

J. P. Saldia, A. Cimino, W. Schulz, S. Elaskar and A. Costa

Mathematical Problems in Engineering, 2009, vol. 2009, 1-14

Abstract:

One of the key issues in a reentry risk analysis is the calculation of the aerodynamic coefficients. This paper presents a methodology to obtain these coefficients and couple it to a code that computes re-entry trajectories considering six degrees of freedom. To evaluate the different flight conditions encountered during the natural re-entry of conical objects, the Euler Equations for gasdynamics flows are used. A new scheme TVD (Total Variation Diminishing) is incorporated to a finite volume unstructured cell-centred formulation, for application to three-dimensional Euler flows. Finally, numerical results are obtained for a conical body at different attack angles and Mach. With these results, the calculation of the trajectories during atmospheric re-entry is completed.

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:859678

DOI: 10.1155/2009/859678

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