INVESTIGADORES
ELASKAR sergio Amado
congresos y reuniones científicas
Título:
Numerical simulation of Conic Objects Dynamics Atmospheric Reentry
Autor/es:
CIMINO, ANDRÉS; SALDÍA, JUAN; SCHULZ, WALKIRIA; ELASKAR, SERGIO; FICO, NIDE
Lugar:
Sao Jose dos Campos
Reunión:
Congreso; 2009 Brazilian Symposium on Aerospace Engineering and Applications; 2009
Resumen:
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One of the key issues in a re-entry 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.
