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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
THERMAL ANALYSIS OF HYPERSONIC REACTIVE FLOWS IN THERMODYNAMIC NON-EQUILIBRIUM OVER THE BRAZILIAN REENTRY SATELLITE (SARA)
Submission Author:
Farney Moreira , SP
Co-Authors:
Farney Moreira, William Wolf, João Luiz F. Azevedo
Presenter: Farney Moreira
doi://10.26678/ABCM.ENCIT2020.CIT20-0087
Abstract
Numerical simulations of air flows are presented for the Brazilian satellite SARA (Portuguese abbreviation for Satélite de Reentrada Atmosférica) configuration under hypersonic conditions during its reentry. Despite the low density flows, the medium can be modeled as continuum, and the laminar flow approximation is valid. The finite volume method is used to solve the Navier-Stokes equations including Park’s two-temperature model for chemical dissociation and ionization. Results are presented in terms of translational-rotational and vibrational-electronic temperature modes and mass fraction distribution along the axisymmetric line of flow stagnation. It is shown that thermodynamic non-equilibrium conditions result from the present high-enthalpy flows.
Keywords
Thermodynamic non-equilibrium, Heat transfer, Hypersonic Flow, Chemical reactions
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