Banca de QUALIFICAÇÃO: PEDRO PAULO BATISTA DE ARAÚJO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : PEDRO PAULO BATISTA DE ARAÚJO
DATE: 26/07/2021
TIME: 14:00
LOCAL: Online
TITLE:

Scramjet in a nanoSats’ launch vehicle

KEY WORDS:

scramjet, hypersonic airbreathing propulsion, hypersonics, aerodynamics, computational fluid dynamics.

PAGES: 82
BIG AREA: Engenharias
AREA: Engenharia Aeroespacial
SUBÁREA: Propulsão Aeroespacial
SPECIALTY: Combustão e Escoamento com Reações Químicas
SUMMARY:

An aerodynamic design of the conceptual model of a supersonic combustion vehicle/engine, scramjet, was carried out to operate as the second stage propulsion engine of a nanoSats’ launch vehicle, in order to improve the efficiency of access to space. The current rocket engines have a low specific impulse when compared to the airbreathing propulsion technologies. The airbreathing engines/vehicles of supersonic combustion are an alternative to better the access space efficiency into transatmospheric flight, under the 60 km of geometric altitude. The current rocket engines have a low specific impulse when compared to the airbreathing propulsion technologies. The airbreathing engines/vehicles of supersonic combustion are an alternative to better the access space efficiency into transatmospheric flight, under the sixty kilometers of geometric altitude. Two engineering approaches were applied to the airflow analysis over the scramjet model proposed, docking to the third stage rocket engine, considering air as a calorically perfect gas. The first approach was using analytical models, neglecting the viscous effects near the wall, to evaluate the aerodynamic properties of the flow along with the geometry, from the compression section, through the combustion chamber, to the expansion section. The second approach is the use of computational numerical simulations, analyzing the airflow over the model, taking into account the viscous effects close to the wall. The first approach to numerical simulation involves comparing analytical results and computer simulation.

BANKING MEMBERS:
Presidente - 738.408.158-00 - PAULO GILBERTO DE PAULA TORO - ITA
Interno - 2524058 - DOUGLAS DO NASCIMENTO SILVA
Externa à Instituição - HEIDI KORZENOWSKI - UNIVAP