Scramjets Fuel Mixing and Injection Systems

Langue : Anglais

Auteur : Barzegar Gerdroodbary Mostafa

Résumé
Sommaire
Lectorat
Biographie
Commentaire

Scramjet engines are a type of jet engine and rely on the combustion of fuel and an oxidizer to produce thrust. While scramjets are conceptually simple, actual implementation is limited by extreme technical challenges. Hypersonic flight within the atmosphere generates immense drag, and temperatures found on the aircraft and within the engine can be much greater than that of the surrounding air. Maintaining combustion in the supersonic flow presents additional challenges, as the fuel must be injected, mixed, ignited, and burned within milliseconds. Fuel mixing, along with the configuration and positioning of the injectors and the boundary conditions, play a key role in combustion efficiency.

Scramjets: Fuel Mixing and Injection Systems discusses how fuel mixing efficiency and the advantage of injection systems can enhance the performance of the scramjets. The book begins with the introduction of the supersonic combustion chamber and explains the main parameters on the mixing rate. The configuration of scramjets is then introduced with special emphasis on the main effective parameters on the mixing of fuel inside the scramjets. In addition, basic concepts and principles on the mixing rate and fuel distribution within scramjets are presented. Main effective parameters such as range of fuel concentration for the efficient combustion, pressure of fuel jet and various arrangement of jet injections are also explained. This book is for aeronautical and mechanical engineers as well as those working in supersonic combustion who need to know the effects of compressibility on combustion, of shocks on mixing and on chemical reactions, and vorticity on the flame anchoring.

1. Introduction
2. Basic principle of supersonic combustion chamber
3. Injection and mixing of single fuel jet in SCRAMJET engine
4. Multi techniques for fuel injections
5. Numerical procedures and simulations
6. Modern techniques for fuel injections

Aeronautical researchers and engineers; Aircraft engineers, Designers of Combustion chamber, R&D of Aircraft; academics and senior postgraduate students in mechanical, aeronautical and astronautical engineering

Dr. Mostafa Barzegar Gerdroodbary is a Research Associate at Babol Noshirvani University of Technology, Iran. He completed his PhD in Mechanical Engineering on Modeling of Rarefied Gas Flow for Calibration of Gas Sensor using DSMC. He got his MSc in Aerospace Engineering (Aerodynamic) from the Faculty of Mechanical Engineering, Iran University of Science and Technology (IUST). He has worked for more than 10 years on computational fluid dynamic (CFD) modeling of supersonic compressible flow. Currently, he is researching image-based, patient-specific computational modeling of the cerebral blood flow and aneurysms in close collaboration with clinicians from different institutions around the world.

Explains the main applicable approaches for enhancement of supersonic combustion engines and the new techniques of fuel injection
Shows how the interaction of main air stream with fuel injections can develop the mixing inside the scramjets
Presents results of numerical simulations and how they can be used for the development of the combustion engines