Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
Estimation of Aerodynamic Warming with Non-zero Angle of Attack
Submission Author:
Humberto Machado , SP , Brazil
Co-Authors:
Humberto Machado
Presenter: Humberto Machado
doi://10.26678/ABCM.ENCIT2018.CIT18-0012
Abstract
Space vehicles are subject to intense warming when crossing the atmosphere. The heat must be prevented from penetrating the ship's systems and cargo in a way that does not impair its mission. Such protection is provided by a heat shield which, in order to be well designed and dimensioned, requires the engineers to know the conditions to which the vehicle is subjected. For the preliminary design, simple calculations provide a good north for this forecast, and a simple and fast model to execute can save project resources while providing a good estimate for the initial cycle of the project. The present study aims to apply and validate an analytical model that provides a good estimation of the surface ow of the SARA vehicle at specific points of its trajectory and within a typical range of angles of attack for the re-entry of the same, allied to a low computational and temporal cost. The analytical is validated through experimental data and compared with numerical results to verify the accuracy of the estimative and evaluate its performance in diverse cases.
Keywords
Aerodynamic warming, Space Vehicles, Non-zero angle of attack
