Scramjet Propulsion

Scramjet Propulsion PDF Author: E. T. Curran
Publisher: AIAA
ISBN: 9781600864414
Category : Airplanes
Languages : en
Pages : 1354

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Scramjet Propulsion

Scramjet Propulsion PDF Author: E. T. Curran
Publisher: AIAA
ISBN: 9781600864414
Category : Airplanes
Languages : en
Pages : 1354

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Book Description


Scramjets

Scramjets PDF Author: Mostafa Barzegar Gerdroodbary
Publisher: Butterworth-Heinemann
ISBN: 0128211407
Category : Technology & Engineering
Languages : en
Pages : 230

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Book Description
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

Numerical Combustion

Numerical Combustion PDF Author: Alain Dervieux
Publisher: Springer
ISBN: 9783662137482
Category : Science
Languages : en
Pages : 483

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Book Description
Interest in numerical combustion is growing among applied mathematicians, physicists, chemists, engine manufacturers and many industrialists. This proceedings volume contains nine invited lectures and twenty seven contributions carefully selected by the editors. The major themes are numerical simulation of transsonic and supersonic combustion phenomena, the study of supersonic reacting mixing layers, and turbulent combustion. Emphasis is laid on hyperbolic models and on numerical simulations of hydrocarbon planes with a complete set of chemical reactions carried out in two-dimensional geometries as well as on complex reactive flow simulations.

A Two-dimensional Numerical Simulation of a Supersonic, Chemically Reacting Mixing Layer

A Two-dimensional Numerical Simulation of a Supersonic, Chemically Reacting Mixing Layer PDF Author: John Philip Drummond
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 112

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Techniques of Scientific Computing for the Energy and Environment

Techniques of Scientific Computing for the Energy and Environment PDF Author: Frédéric Magoulès
Publisher: Nova Publishers
ISBN: 9781600219214
Category : Mathematics
Languages : en
Pages : 116

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Book Description
Research and development in scientific computing and computational science has considerably increased the power of numerical simulation. Engineers and researchers are now able to solve large and complex problems which were impossible to solve in the past. This new book presents some techniques, methods and algorithms for solving engineering problems arising in energy and environment applications.

Reacting Flows: Combustion and Chemical Reactors

Reacting Flows: Combustion and Chemical Reactors PDF Author: G. S. S. Ludford
Publisher: American Mathematical Soc.
ISBN: 9780821811245
Category : Mathematics
Languages : en
Pages : 514

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Book Description
Represents the culmination of the Special Year '84-'85 in Reacting Flows held at Cornell University. This work focuses on both mathematical and computational questions in combustion and chemical reactors. It is suitable for researchers and graduate students in the theory of reacting flows.

The Scramjet Engine

The Scramjet Engine PDF Author: Corin Segal
Publisher: Cambridge University Press
ISBN: 0521838150
Category : Technology & Engineering
Languages : en
Pages : 271

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Book Description
Demand for high-speed propulsion has renewed development of the supersonic combustion ramjet engine (Scramjet engine) for hypersonic flight applications.

Reduced Kinetic Mechanisms for Applications in Combustion Systems

Reduced Kinetic Mechanisms for Applications in Combustion Systems PDF Author: Norbert Peters
Publisher: Springer Science & Business Media
ISBN: 3540475435
Category : Science
Languages : en
Pages : 364

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Book Description
In general, combustion is a spatially three-dimensional, highly complex physi co-chemical process oftransient nature. Models are therefore needed that sim to such a degree that it becomes amenable plify a given combustion problem to theoretical or numerical analysis but that are not so restrictive as to distort the underlying physics or chemistry. In particular, in view of worldwide efforts to conserve energy and to control pollutant formation, models of combustion chemistry are needed that are sufficiently accurate to allow confident predic tions of flame structures. Reduced kinetic mechanisms, which are the topic of the present book, represent such combustion-chemistry models. Historically combustion chemistry was first described as a global one-step reaction in which fuel and oxidizer react to form a single product. Even when detailed mechanisms ofelementary reactions became available, empirical one step kinetic approximations were needed in order to make problems amenable to theoretical analysis. This situation began to change inthe early 1970s when computing facilities became more powerful and more widely available, thereby facilitating numerical analysis of relatively simple combustion problems, typi cally steady one-dimensional flames, with moderately detailed mechanisms of elementary reactions. However, even on the fastest and most powerful com puters available today, numerical simulations of, say, laminar, steady, three dimensional reacting flows with reasonably detailed and hence realistic ki netic mechanisms of elementary reactions are not possible.

Modeling and Simulation of Turbulent Combustion

Modeling and Simulation of Turbulent Combustion PDF Author: Santanu De
Publisher: Springer
ISBN: 9811074100
Category : Science
Languages : en
Pages : 663

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Book Description
This book presents a comprehensive review of state-of-the-art models for turbulent combustion, with special emphasis on the theory, development and applications of combustion models in practical combustion systems. It simplifies the complex multi-scale and nonlinear interaction between chemistry and turbulence to allow a broader audience to understand the modeling and numerical simulations of turbulent combustion, which remains at the forefront of research due to its industrial relevance. Further, the book provides a holistic view by covering a diverse range of basic and advanced topics—from the fundamentals of turbulence–chemistry interactions, role of high-performance computing in combustion simulations, and optimization and reduction techniques for chemical kinetics, to state-of-the-art modeling strategies for turbulent premixed and nonpremixed combustion and their applications in engineering contexts.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702

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