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  • ID: 4911867
  • Book
  • July 2020
  • 228 Pages
  • Elsevier Science and Technology
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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.

- 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

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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
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Barzegar Gerdroodbary, Mostafa
Dr. Barzegar Gerdroodbaryis a Research Associate at Babol Noshirvani University of Technology. He completed his Ph.D. in Mechanical Engineering on Modelling 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 & Technology (IUST). He had worked more than 10 years on Computational Fluid Dynamic (CFD) modelling of supersonoic compressible flow. He started his career in industry as an R&D engineer and worked in industries more than three years. Before joining in Babol Noshirvani University of Technology, for about five years, he was a senior researcher in IUST-Chemical Engineering Research Centre.
One of his main topic researches is Combustors | Combustion | supersonic combustor. He has published about 35 combustion and mixing-related publications (most are ISI and Q1 journal paper). A number of his papers are hot papers with high citations; besides, some of his publications were listed among the top 25 articles in ScienceDirect published by Elsevier Limited. He got the excellence award for Ph.D., also received National high Talented Scholars due to his PhD researches.
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