Eventos Anais de eventos
ENCIT 2022
19th Brazilian Congress of Thermal Sciences and Engineering
Numerical simulation of turbulent compressible flow over a surface bump
Submission Author:
Humberto Machado , SP , Brazil
Co-Authors:
Amanda Chenu Romano, Carlos Henrique Melo Souza, Danton José Fortes Villas Boas, Angelo Passaro, Humberto Machado
Presenter: Humberto Machado
doi://10.26678/ABCM.ENCIT2022.CIT22-0439
Abstract
Space and sub-orbital rockets reach high velocities in atmospheric flight, which results in compressible flows around their bodies. Diverse systems are placed in the external surface of such vehicles, appearing like bumps and disturbing the flow. The flow perturbation may result also in a wake formation afterward the bump. These effects affect the aerodynamic performance and the heat transfer in the surface and have to be accurate estimated in order to adjust the dynamic and thermal loads during the flight. In this work, a compressible turbulent flow over a bump is simulated and validated through the comparison with some literature results. Some turbulence models are applied in the simulation and compared with reference data, in order to evaluate their accuracy, allowing deciding the most adequate to this kind of problem.
Keywords
Numerical simulation, Turbulent flow, surface discontinuit
