Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Numerical Study of a Regenerative Cooling Jacket in a Scramjet Inlet
Submission Author:
Guilherme Borges Ribeiro , SP , Brazil
Co-Authors:
marco antonio Santos, Guilherme Borges Ribeiro
Presenter: marco antonio Santos
doi://10.26678/ABCM.COBEM2023.COB2023-0400
Abstract
This study presents an approach to address the challenge of overheating in scramjet engines through regenerative cooling. The focus is on implementing a channel geometry aimed at reducing high temperatures at the leading edge and engine ramps using hydrogen as the coolant fluid. Scramjet engines are designed to operate at hypersonic speeds and are powered by atmospheric oxygen. However, these extreme conditions result in very high temperatures in the internal parts of the engine, such as the leading edge and ramps. These high temperatures can lead to wear and degradation of the engine, compromising its performance and lifespan. To address this issue, regenerative cooling is proposed, a technique that involves directing a coolant fluid through internal channels in the engine to remove excess heat. In this study, the implementation of a specific channel geometry is explored as a strategy to reduce critical temperatures. Hydrogen is chosen as the ideal coolant due to its favorable thermal properties, high cooling capacity, and compatibility with the scramjet engine. Through the design and optimization of the channel geometry, the aim is to efficiently direct the flow of hydrogen to cool the critical areas of the engine. Preliminary results show that implementing this channel geometry provides a significant reduction in high temperatures at the leading edge and engine ramps. This has the potential to improve the performance and reliability of the scramjet engine, extending its lifespan and enhancing its operational efficiency. In summary, the study proposes an innovative approach to address the challenge of overheating in scramjet engines through regenerative cooling. The implementation of a specific channel geometry using hydrogen as a coolant has shown promising results in reducing high temperatures at the leading edge and engine ramps. This
Keywords
Scramjet, cooling, CFD, Propulsion
