Banca de QUALIFICAÇÃO: FELIPE DANTAS DOS SANTOS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : FELIPE DANTAS DOS SANTOS
DATE: 22/07/2025
TIME: 14:00
LOCAL: online
TITLE:

Conceptual study of supersonic combustion for ascending flight at constant hypersonic speed in earth's atmosphere

KEY WORDS:

hypersonic airbreathing propulsion, supersonic combustion, scramjet, engineering approach, analytical study, numerical study

PAGES: 73
BIG AREA: Engenharias
AREA: Engenharia Aeroespacial
SUBÁREA: Aerodinâmica
SPECIALTY: Aerodinâmica de Aeronaves Espaciais
SUMMARY:

This work presents the conceptual study of a scramjet demonstrator operating in hypersonic flight at 1950 m/s, at altitudes of 21 km, 26 km, and 31 km. The adopted methodology is based on the optimization of the compression section, using the criteria of on-lip shock, on-corner shock. The results indicated that, regardless of altitude, constant conditions were achieved at the entrance of the combustion chamber, with a temperature of approximately 1094 K and a Mach number of 2.16. The comparative analysis showed that increasing the number of compression ramps improves compression efficiency by reducing shock losses and maintaining the supersonic regime. The configuration with three ramps stood out as the most efficient, balancing aerothermodynamic performance. The power-on simulations, applying Rayleigh flow theory, confirmed an increase in thermodynamic properties and the generation of positive uninstalled thrust, validating the demonstrator's potential for sustained hypersonic airbreathing flight. This study directly contributes to national advances in the development of hypersonic airbreathing propulsion systems, strengthening the application of analytical methods in the preliminary design of scramjet.

COMMITTEE MEMBERS:
Presidente - ***.408.158-** - PAULO GILBERTO DE PAULA TORO - ITA
Interno - 2524058 - DOUGLAS DO NASCIMENTO SILVA
Interno - 1235107 - GEORGE SANTOS MARINHO
Externa à Instituição - HEIDI KORZENOWSKI - UNIVAP