Burning of the Supersonic Propane-Air Mixture in the Aerodynamic Channel With the Stagnant Zone PDF Download
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Languages : en
Pages : 11
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Book Description
In the report the pulsed-periodical discharges created on an external surface of a flat plate being flown around of supersonic airflow and under condition of a stagnant zone located on a wide wall of the aerodynamic channel of rectangular section were investigated. It was show that the surface pulsed-periodical discharge results to ignition beforehand mixed supersonic propane-air fuel in the aerodynamic channel. In experimental conditions the combustion front speed reaches value of v(sub c)=40-45 m/s that well coordinates to the data which was got at investigation of burning into the fire-resistant channel. The kinetical model is working out for finding-out of influence of different channels on ignition of combustible mixtures in supersonic flow. The preliminary calculations demonstrate that at low initial gas temperature the induction time of H2-O2 mixture decreases on some orders of magnitude at taking into account of dissociation active radicals and charged particles.
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Category :
Languages : en
Pages : 11
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Book Description
In the report the pulsed-periodical discharges created on an external surface of a flat plate being flown around of supersonic airflow and under condition of a stagnant zone located on a wide wall of the aerodynamic channel of rectangular section were investigated. It was show that the surface pulsed-periodical discharge results to ignition beforehand mixed supersonic propane-air fuel in the aerodynamic channel. In experimental conditions the combustion front speed reaches value of v(sub c)=40-45 m/s that well coordinates to the data which was got at investigation of burning into the fire-resistant channel. The kinetical model is working out for finding-out of influence of different channels on ignition of combustible mixtures in supersonic flow. The preliminary calculations demonstrate that at low initial gas temperature the induction time of H2-O2 mixture decreases on some orders of magnitude at taking into account of dissociation active radicals and charged particles.
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Category :
Languages : en
Pages : 4
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Book Description
In the report the pulsed periodical discharges created on an external surface of a flat plate being flown around of supersonic airflow and under condition of a stagnant zone located on a wide wall of the aerodynamic channel of rectangular section were investigated. It was shown that the surface pulsed periodical discharge results to ignition beforehand mixed supersonic propane air fuel in the aerodynamic channel. In experimental conditions the combustion front speed reaches value of vc=4O-45 m/s that well coordinates to the data which was got at investigation of burning into the fire resistant channel.
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ISBN:
Category : Aeronautics
Languages : en
Pages : 582
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 1146
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Author: Mikhail Makarovich Bondari͡u︡k
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 466
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Book Description
Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 1338
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 568
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Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Author: DP Mishra
Publisher: CRC Press
ISBN: 1351708414
Category : Technology & Engineering
Languages : en
Pages : 364
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Book Description
The book follows a unified approach to present the basic principles of rocket propulsion in concise and lucid form. This textbook comprises of ten chapters ranging from brief introduction and elements of rocket propulsion, aerothermodynamics to solid, liquid and hybrid propellant rocket engines with chapter on electrical propulsion. Worked out examples are also provided at the end of chapter for understanding uncertainty analysis. This book is designed and developed as an introductory text on the fundamental aspects of rocket propulsion for both undergraduate and graduate students. It is also aimed towards practicing engineers in the field of space engineering. This comprehensive guide also provides adequate problems for audience to understand intricate aspects of rocket propulsion enabling them to design and develop rocket engines for peaceful purposes.
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
Author: I. E. Idelchik
Publisher:
ISBN: 9788179921180
Category : Fluid dynamics
Languages : en
Pages : 0
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Book Description
The handbook has been composed on the basis of processing, systematization and classification of the results of a great number of investigations published at different time. The essential part of the book is the outcome of investigations carried out by the author. The present edition of this handbook should assist in increasing the quality and efficiency of the design and usage of indutrial power engineering and other constructions and also of the devices and apparatus through which liquids and gases move.
