Banca de DEFESA: MARCOS VINICIUS SABINO PEREIRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MARCOS VINICIUS SABINO PEREIRA
DATE: 19/02/2022
TIME: 14:00
LOCAL: Google Meet
TITLE:

Preliminary design of a scramjet to insert cubesat into orbit

KEY WORDS:

scramjet, supersonic combustion, hypersonic airbreathing propulsion, analytical study, CubeSat

PAGES: 71
BIG AREA: Engenharias
AREA: Engenharia Aeroespacial
SUBÁREA: Propulsão Aeroespacial
SPECIALTY: Motores Alternativos
SUMMARY:

In order to access the space through the application of hypersonic airbreathing propulsion technology, this work proposes the development of a scramjet (supersonic combustion ramjet). The aerospace vehicle proposed in this work will have three stages, two stages of rocket engines with solid propulsion and a stage composed by a scramjet with four combustion chambers. The scramjet of this vehicle will operate in vertical flight in the Earth’s atmosphere, from 20 km to 60 km of altitude with hypersonic speed corresponding to approximately Mach number 5.8. Bearing in mind that the scramjet has no moving parts and needs a system that accelerates it, up to supersonic combustion conditions, it will be necessary to use the accelerator vehicle that is responsible for propelling the scramjet to the ideal operating conditions (Mach number, position, dynamic pressure). This aerospace vehicle will have the utility of accessing space and conducting drilling experiments, injecting CubeSat into orbit and training the specialized labor responsible for aerospace operations. For the preliminary development of this work, it is necessary to use the theories referring to the formation of shock waves and expansion waves, in addition to the theories related to the addition of heat and the formation of a boundary layer in flow with hypersonic velocity. Therefore, for this development the analytical theoretical methodology was applied and then with the results obtained it was possible to carry out, in the near future, the preliminary mechanical design that determines the necessary basic measures, in addition to the possible materials to be used in the vehicle. The preliminary results of this work indicate that the scramjet will be able to generate thrust and that when considering the existence of the boundary layer, a change in the geometry of the vehicle's inlet is necessary, so that it is possible to maintain the formation of shock-on-lip and shock-on -corner in the scramjet structure.

BANKING MEMBERS:
Presidente - 1647050 - SANDI ITAMAR SCHAFER DE SOUZA
Interno - 2524058 - DOUGLAS DO NASCIMENTO SILVA
Interno - 738.408.158-00 - PAULO GILBERTO DE PAULA TORO - ITA
Externa à Instituição - HEIDI KORZENOWSKI - UNIVAP