INVESTIGADORES
ELASKAR sergio Amado
artículos
Título:
Atmospheric Re-entry Dynamics of Conic Objects
Autor/es:
SALDÍA, JUAN; CIMINO, ANDRÉS; SCHULZ, WALKIRIA; ELASKAR, SERGIO; COSTA, ANDREA
Revista:
MATHEMATICAL PROBLEMS IN ENGINEERING
Editorial:
HINDAWI PUBLISHING CORPORATION
Referencias:
Año: 2009 vol. 2009 p. 859678 - 859679
ISSN:
1024-123X
Resumen:
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 thatcomputes re-entry trajectories considering six degrees of freedom. To evaluate the different flightconditions encountered during the natural re-entry of conical objects, the Euler Equations forgasdynamics 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 Eulerflows. 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.
