An Analytical Study of the Hydrogen-Air Reaction Mechanism with Application to Scramjet Combustion

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Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781725084629
Total Pages : 32 pages
Book Rating : 4.0/5 (846 download)

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Book Synopsis An Analytical Study of the Hydrogen-Air Reaction Mechanism with Application to Scramjet Combustion by : National Aeronautics and Space Administration (NASA)

Download or read book An Analytical Study of the Hydrogen-Air Reaction Mechanism with Application to Scramjet Combustion written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-10 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A chemical kinetic mechanism for the combustion of hydrogen has been assembled and optimized by comparing the observed behavior as determined in shock tube and flame studies with that predicted by the mechanism. The reactions contained in the mechanism reflect the current state of knowledge of the chemistry of the hydrogen/air system, and the assigned rate coefficients are consistent with accepted values. It was determined that the mechanism is capable of satisfactorily reproducing the experimental results for a range of conditions relevant to scramjet combustion. Calculations made with the reaction mechanism for representative scramjet combustor conditions at Mach 8, 16, and 25 showed that chemical kinetic effects can be important and that combustor models which use nonequilibrium chemistry should be used in preference to models that assume equilibrium chemistry. For the conditions examined the results also showed the importance of including the HO2 chemistry in the mechanism. For Mach numbers less than 16, the studies suggest that an ignition source will most likely be required to overcome slow ignition chemistry. At Mach 25, the initial temperature and pressure was high enough that ignition was rapid and the presence of an ignition source did not significantly affect reaction rates. Jachimowski, Casimir J. Langley Research Center NASA-TP-2791, L-16372, NAS 1.60:2791 RTOP 505-62-31-01...

An Analytical Study of the Hydrogen-air Reaction Mechanism with Application to Scramjet Combustion

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ISBN 13 :
Total Pages : 28 pages
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Book Synopsis An Analytical Study of the Hydrogen-air Reaction Mechanism with Application to Scramjet Combustion by : Casimir J. Jachimowski

Download or read book An Analytical Study of the Hydrogen-air Reaction Mechanism with Application to Scramjet Combustion written by Casimir J. Jachimowski and published by . This book was released on 1988 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Scientific and Technical Publications

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ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis NASA Scientific and Technical Publications by :

Download or read book NASA Scientific and Technical Publications written by and published by . This book was released on 1991 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Monthly Catalog of United States Government Publications

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ISBN 13 :
Total Pages : 1224 pages
Book Rating : 4.:/5 (891 download)

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Book Synopsis Monthly Catalog of United States Government Publications by :

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Parallel Computational Fluid Dynamics '98

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Publisher : Elsevier
ISBN 13 : 0080538398
Total Pages : 549 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Parallel Computational Fluid Dynamics '98 by : Chiao-ling Lin

Download or read book Parallel Computational Fluid Dynamics '98 written by Chiao-ling Lin and published by Elsevier. This book was released on 1999-05-26 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the papers presented at the Parallel Computational Fluid Dynamics 1998 Conference. The book is focused on new developments and applications of parallel technology. Key topics are introduced through contributed papers and invited lectures. These include typical algorithmic developments, such as: distributed computing, domain decomposition and parallel algorithm. Some of the papers address the evaluations of software and machine performance and software tool environments. The application of parallel computers to complex fluid dynamics problems are also conveyed through sessions such as DNS/LES, combustion and reacting flows, industrial applications, water resources and environmental flows.The editors believe this book will provide many researchers, much beyond those contributing to this volume, with fresh information and reference.

The Scramjet Engine

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Publisher : Cambridge University Press
ISBN 13 : 0521838150
Total Pages : 271 pages
Book Rating : 4.5/5 (218 download)

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Book Synopsis The Scramjet Engine by : Corin Segal

Download or read book The Scramjet Engine written by Corin Segal and published by Cambridge University Press. This book was released on 2009-06-22 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Demand for high-speed propulsion has renewed development of the supersonic combustion ramjet engine (Scramjet engine) for hypersonic flight applications.

NASA Technical Paper

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ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.F/5 ( download)

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Download or read book NASA Technical Paper written by and published by . This book was released on 1992 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NEQPAK, the AEDC Thermochemical Nonequilibrium Package

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ISBN 13 :
Total Pages : 98 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis NEQPAK, the AEDC Thermochemical Nonequilibrium Package by : J. T. Curtis

Download or read book NEQPAK, the AEDC Thermochemical Nonequilibrium Package written by J. T. Curtis and published by . This book was released on 1994 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: NEQPAK is a set of Fortran 77 routines and databases which are useful in the development and application of nonequilibrium flow solvers. The set includes a library of subroutines for evaluating reaction rates and the thermal and transport properties of high-temperature ionized gases. Thermal nonequilibrium may be treated by applying modules which evaluate the interactions between molecular energy modes. The interactions between vibrational and chemical relaxation may be investigated by using multiple- temperature reaction models or by applying the coupling factors suggested by contemporary theories. A utility for correlating user-supplied reaction data with the material properties database is also provided. Most of the modules are optimized for use on vector-processing machines, and have been designed for the efficient use of memory. The thermal properties database covers the range from 100 to 35,000 K, and the transport properties database extends from 300 to 30, 000 K, and the transport properties database extends from 300 to 30,000 K. This report describes the thermophysical models embodied in NEQPAK and explains how the routines may be incorporated into hypersonic CFD codes.

Monthly Catalogue, United States Public Documents

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ISBN 13 :
Total Pages : 1480 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Monthly Catalogue, United States Public Documents by :

Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1990 with total page 1480 pages. Available in PDF, EPUB and Kindle. Book excerpt:

28th International Symposium on Shock Waves

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Publisher : Springer Science & Business Media
ISBN 13 : 3642256856
Total Pages : 1122 pages
Book Rating : 4.6/5 (422 download)

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Book Synopsis 28th International Symposium on Shock Waves by : Konstantinos Kontis

Download or read book 28th International Symposium on Shock Waves written by Konstantinos Kontis and published by Springer Science & Business Media. This book was released on 2012-03-22 with total page 1122 pages. Available in PDF, EPUB and Kindle. Book excerpt: The University of Manchester hosted the 28th International Symposium on Shock Waves between 17 and 22 July 2011. The International Symposium on Shock Waves first took place in 1957 in Boston and has since become an internationally acclaimed series of meetings for the wider Shock Wave Community. The ISSW28 focused on the following areas: Blast Waves, Chemically Reacting Flows, Dense Gases and Rarefied Flows, Detonation and Combustion, Diagnostics, Facilities, Flow Visualisation, Hypersonic Flow, Ignition, Impact and Compaction, Multiphase Flow, Nozzle Flow, Numerical Methods, Propulsion, Richtmyer-Meshkov, Shockwave Boundary Layer Interaction, Shock Propagation and Reflection, Shock Vortex Interaction, Shockwave Phenomena and Applications, as well as Medical and Biological Applications. The two Volumes contain the papers presented at the symposium and serve as a reference for the participants of the ISSW 28 and individuals interested in these fields.

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 702 pages
Book Rating : 4.:/5 (31 download)

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Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scramjet Combustion

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Publisher : Butterworth-Heinemann
ISBN 13 : 0323995667
Total Pages : 198 pages
Book Rating : 4.3/5 (239 download)

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Book Synopsis Scramjet Combustion by : Gautam Choubey

Download or read book Scramjet Combustion written by Gautam Choubey and published by Butterworth-Heinemann. This book was released on 2022-07-08 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scramjet Combustion explores the development of a high-speed scramjet engine operating in the supersonic/hypersonic range for various air and space transport applications. The book explains the basic structure, components, working cycle, and the relevant governing equations in a clear manner that speaks to both advanced and more novice audiences. Particular attention is paid to efficient air–fuel combustion, looking at both the underlying fundamentals of combustion as well strategies for obtaining optimum combustion efficiency. Methods for reaching the chemically correct air–fuel ratio, subsequent flame, and combustion stabilization as air enters at supersonic speed are also outlined. Further, it includes the continuous on-going efforts, innovations, and advances with respect to the design modification of scramjet combustors, as well as different strategies of fuel injections for obtaining augmented performance while highlighting the current and future challenges. - Outlines the fundamentals of scramjet engines including their basic structure and components, working cycle, governing equations, and combustion fundamentals affecting the combustion and mixing processes - Presents new design modifications of scramjet combustors and different fuel injection strategies including combined fuel injection approaches - Discusses core topics such as chemical kinetics in supersonic flow, fuel–air mixing methods, strategies for combating combustion difficulties, and subsequent flame and combustion stabilization that can be applied to scramjets - Describes the pedagogy for computational approaches in simulating supersonic flows

Ram Accelerators

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Publisher : Springer Science & Business Media
ISBN 13 : 3642468764
Total Pages : 337 pages
Book Rating : 4.6/5 (424 download)

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Book Synopsis Ram Accelerators by : Kazuyoshi Takayama

Download or read book Ram Accelerators written by Kazuyoshi Takayama and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ram accelerators are among the most advanced tools for generating fluid dynamcis data in supersonic reacting systems. They require the combined action of combustion, wave systems and turbulence and are still a serious challenge for physicists and engineers. This book will serve as an introductionary textbook on ram accelerators and gives a thorough overview on research activities, performance modeling and high-pressure detonation dynamics.

NASA Scientific and Technical Publications

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ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.3/5 ( download)

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Download or read book NASA Scientific and Technical Publications written by and published by . This book was released on 1987 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Aerothermodynamic Flow Phenomena of the Airframe-integrated Supersonic Combustion Ramjet

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ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Aerothermodynamic Flow Phenomena of the Airframe-integrated Supersonic Combustion Ramjet by : James T. Walton

Download or read book Aerothermodynamic Flow Phenomena of the Airframe-integrated Supersonic Combustion Ramjet written by James T. Walton and published by . This book was released on 1992 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

High Performance Computing in Science and Engineering ’01

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Publisher : Springer Science & Business Media
ISBN 13 : 3642560342
Total Pages : 548 pages
Book Rating : 4.6/5 (425 download)

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Book Synopsis High Performance Computing in Science and Engineering ’01 by : Egon Krause

Download or read book High Performance Computing in Science and Engineering ’01 written by Egon Krause and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume summarizes the state of the art in supercomputing, with special emphasis on the industrial relevance of the presented results and methods. The book showcases an innovative usage of state-of-the-art modeling, novel numerical algorithms and the use of leading-edge high-performance computing systems in a GRID-like environment.

An Analysis of Combustion Studies in Shock Expansion Tunnels and Reflected Shock Tunnels

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ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis An Analysis of Combustion Studies in Shock Expansion Tunnels and Reflected Shock Tunnels by : Casimir J. Jachimowski

Download or read book An Analysis of Combustion Studies in Shock Expansion Tunnels and Reflected Shock Tunnels written by Casimir J. Jachimowski and published by . This book was released on 1992 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: