Ignition Dynamics of a Laminar Diffusion Flame in the Field of a Vortex Embedded in a Shear Flow

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Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722289911
Total Pages : 38 pages
Book Rating : 4.2/5 (899 download)

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Book Synopsis Ignition Dynamics of a Laminar Diffusion Flame in the Field of a Vortex Embedded in a Shear Flow by : National Aeronautics and Space Administration (NASA)

Download or read book Ignition Dynamics of a Laminar Diffusion Flame in the Field of a Vortex Embedded in a Shear Flow written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-05 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of streamwise-spanwise vorticity interactions that occur in turbulent shear flows on flame/vortex interactions is examined by means of asymptotic analysis and numerical simulation in the limit of small Mach number. An idealized model is employed to describe the interaction process. The model consists of a one-step, irreversible Arrhenius reaction between initially unmixed species occupying adjacent half-planes which are then allowed to mix and react in the presence of a streamwise vortex embedded in a shear flow. It is found that the interaction of the streamwise vortex with shear gives rise to small-scale velocity oscillations which increase in magnitude with shear strength. These oscillations give rise to regions of strong temperature gradients via viscous heating, which can lead to multiple ignition points and substantially decrease ignition times. The evolution in time of the temperature and mass-fraction fields is followed, and emphasis is placed on the ignition time and structure as a function of vortex and shear strength. Macaraeg, Michele G. and Jackson, T. L. and Hussaini, M. Y. Langley Research Center NAS1-19480; RTOP 505-90-52-01...

Ignition Dynamics of a Laminar Diffusion Flame in the Field of a Vortex Embedded in a Shear Flow

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ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Ignition Dynamics of a Laminar Diffusion Flame in the Field of a Vortex Embedded in a Shear Flow by : Michele G. Macaraeg

Download or read book Ignition Dynamics of a Laminar Diffusion Flame in the Field of a Vortex Embedded in a Shear Flow written by Michele G. Macaraeg and published by . This book was released on 1994 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 700 pages
Book Rating : 4.3/5 (91 download)

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Monthly Catalog of United States Government Publications

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ISBN 13 :
Total Pages : 932 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Monthly Catalog of United States Government Publications by :

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Monthly Catalogue, United States Public Documents

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ISBN 13 :
Total Pages : 1100 pages
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ICASE

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Total Pages : 128 pages
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Download or read book ICASE written by and published by . This book was released on 1994 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ignition and Structure of a Laminar Diffusion Flame in the Field of a Vortex

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ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (123 download)

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Book Synopsis Ignition and Structure of a Laminar Diffusion Flame in the Field of a Vortex by : Institute for Computer Applications in Science and Engineering

Download or read book Ignition and Structure of a Laminar Diffusion Flame in the Field of a Vortex written by Institute for Computer Applications in Science and Engineering and published by . This book was released on 1991 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Technical Memorandum

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ISBN 13 :
Total Pages : 182 pages
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Cumulative Reports and Publications Through December 31, 1994

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ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Cumulative Reports and Publications Through December 31, 1994 by :

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Government Reports Announcements & Index

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ISBN 13 :
Total Pages : 768 pages
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NASA Langley Scientific and Technical Information Output: 1994, Volume 1

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ISBN 13 :
Total Pages : 180 pages
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International Aerospace Abstracts

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Total Pages : 974 pages
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Dynamics of Deflagrations and Reactive Systems

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Publisher : AIAA
ISBN 13 : 9781600863851
Total Pages : 454 pages
Book Rating : 4.8/5 (638 download)

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Book Synopsis Dynamics of Deflagrations and Reactive Systems by : A. L. Kuhl

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Applied mechanics reviews

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ISBN 13 :
Total Pages : 400 pages
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The Dynamics of Extinction and Re-ignition Processes on a Diffusion Flame Sheet

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Total Pages : pages
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Book Synopsis The Dynamics of Extinction and Re-ignition Processes on a Diffusion Flame Sheet by : Zhanbin Lu

Download or read book The Dynamics of Extinction and Re-ignition Processes on a Diffusion Flame Sheet written by Zhanbin Lu and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This research is concerned with a theoretical and computational study of the dynamics of ignition and extinction fronts on a laminar diffusion flame sheet. In the light of the S-curve, within the extinction and ignition Damkohler number limits, ignition and extinction of a diffusion flame may be regarded as dynamical transition processes between the extinguished branch and the ignited branch, with the edge flame as a characteristic transition structure. This research is devoted to the study of the temporal dynamics of curved edge flames.

Ignition and Structure of a Laminar Diffusion Flame in a Compressible Mixing Layer with Finite Rate Chemistry

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ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Ignition and Structure of a Laminar Diffusion Flame in a Compressible Mixing Layer with Finite Rate Chemistry by : Institute for Computer Applications in Science and Engineering

Download or read book Ignition and Structure of a Laminar Diffusion Flame in a Compressible Mixing Layer with Finite Rate Chemistry written by Institute for Computer Applications in Science and Engineering and published by . This book was released on 1991 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Annual Index

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ISBN 13 :
Total Pages : 1400 pages
Book Rating : 4.:/5 (89 download)

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Download or read book Government Reports Annual Index written by and published by . This book was released on 1992 with total page 1400 pages. Available in PDF, EPUB and Kindle. Book excerpt: