TY - JOUR A2 - Winter, Silvia Maria Giuliatti AU - Saldia, J. P. AU - Cimino, A. AU - Schulz, W. AU - Elaskar, S. AU - Costa, A. PY - 2009 DA - 2010/01/26 TI - Atmospheric Reentry Dynamics of Conic Objects SP - 859678 VL - 2009 AB - 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. SN - 1024-123X UR - https://doi.org/10.1155/2009/859678 DO - 10.1155/2009/859678 JF - Mathematical Problems in Engineering PB - Hindawi Publishing Corporation KW - ER -