Comparison of the Effects of Different Transport Coefficients on the Nonlinear Reflection and Transmission Coefficients of a Reentry Plasma

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Total Pages : 60 pages
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Book Synopsis Comparison of the Effects of Different Transport Coefficients on the Nonlinear Reflection and Transmission Coefficients of a Reentry Plasma by : Robert J. Papa

Download or read book Comparison of the Effects of Different Transport Coefficients on the Nonlinear Reflection and Transmission Coefficients of a Reentry Plasma written by Robert J. Papa and published by . This book was released on 1973 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a previous report, it was explained how it is desirable to maximize the amount of power that can be transmitted from a reentry vehicle by suppressing the onset of antenna voltage breakdown. Thus, the amount of high power EM radiation that can be transmitted will be greatly enhanced if electrophilic compounds are injected into the reentry flow field. A computer program has been set up and is now capable of numerically integrating Maxwell's equations coupled with the plasma transport equations. The computer code calculates the electron density profile and the plane wave transmission and reflection coefficients, as a function of incident power level for a variety of reentry flow field conditions. An implicit-explicit method is used to numerically integrate in time the coupled, nonlinear, parabolic partial differential equations. A very efficient algorithm is given for solving the coupled, tridiagonal system of equations for the electron and positive ion densities. For a typical set of reentry flow field conditions, graphs are presented of the electron density profile and the plane wave reflection and transmission coefficients for different incident power levels. The effects of varying the plasma transport coefficients are investigated in some detail. Also, the effects of varying the length of a high power pulse are investigated. (Author).

Comparison of the Effects of Different Transport Coefficients on the Nonlinear Reflection and Transmission Coefficients of a Reentry Plasma

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Book Synopsis Comparison of the Effects of Different Transport Coefficients on the Nonlinear Reflection and Transmission Coefficients of a Reentry Plasma by : Robert J. Papa

Download or read book Comparison of the Effects of Different Transport Coefficients on the Nonlinear Reflection and Transmission Coefficients of a Reentry Plasma written by Robert J. Papa and published by . This book was released on 1973 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a previous report, it was explained how it is desirable to maximize the amount of power that can be transmitted from a reentry vehicle by suppressing the onset of antenna voltage breakdown. Thus, the amount of high power EM radiation that can be transmitted will be greatly enhanced if electrophilic compounds are injected into the reentry flow field. A computer program has been set up and is now capable of numerically integrating Maxwell's equations coupled with the plasma transport equations. The computer code calculates the electron density profile and the plane wave transmission and reflection coefficients, as a function of incident power level for a variety of reentry flow field conditions. An implicit-explicit method is used to numerically integrate in time the coupled, nonlinear, parabolic partial differential equations. A very efficient algorithm is given for solving the coupled, tridiagonal system of equations for the electron and positive ion densities. For a typical set of reentry flow field conditions, graphs are presented of the electron density profile and the plane wave reflection and transmission coefficients for different incident power levels. The effects of varying the plasma transport coefficients are investigated in some detail. Also, the effects of varying the length of a high power pulse are investigated. (Author)

Effects of Different Flow Field Conditions on the High Power Transmission Properties of a Reentry Plasma

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Total Pages : 60 pages
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Book Synopsis Effects of Different Flow Field Conditions on the High Power Transmission Properties of a Reentry Plasma by : Robert J. Papa

Download or read book Effects of Different Flow Field Conditions on the High Power Transmission Properties of a Reentry Plasma written by Robert J. Papa and published by . This book was released on 1973 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The computer program for calculating the high power microwave transmission coefficients of a chemically seeded reentry plasma has been described in two previous reports by the author. It has been explained how the computer code can optimize the amount of high power that can be transmitted from a reentry vehicle. The injection of electrophilic compounds into the reentry flow field can suppress the onset of antenna voltage breakdown, so that the transmitted power can be greatly increased. Using a half implicit-half explicit time integration scheme, the electron and ion transport equations coupled with Maxwell's equations are numerically integrated to determine the nonlinear reflection and transmission coefficients of a reentry plasma. Corresponding to the flow field conditions of a blunt nosed reentry vehicle (Trailblazer 2), graphs are presented to the electron density profile and plane wave reflection and transmission coefficients. (Modified author abstract).

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 1368 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1983 with total page 1368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Effects of Different Flow Field Conditions on the High Power Transmission Properties of a Reentry Plasma

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Total Pages : 0 pages
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Book Synopsis Effects of Different Flow Field Conditions on the High Power Transmission Properties of a Reentry Plasma by : Robert J. Papa

Download or read book Effects of Different Flow Field Conditions on the High Power Transmission Properties of a Reentry Plasma written by Robert J. Papa and published by . This book was released on 1973 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The computer program for calculating the high power microwave transmission coefficients of a chemically seeded reentry plasma has been described in two previous reports by the author. It has been explained how the computer code can optimize the amount of high power that can be transmitted from a reentry vehicle. The injection of electrophilic compounds into the reentry flow field can suppress the onset of antenna voltage breakdown, so that the transmitted power can be greatly increased. Using a half implicit-half explicit time integration scheme, the electron and ion transport equations coupled with Maxwell's equations are numerically integrated to determine the nonlinear reflection and transmission coefficients of a reentry plasma. Corresponding to the flow field conditions of a blunt nosed reentry vehicle (Trailblazer 2), graphs are presented to the electron density profile and plane wave reflection and transmission coefficients. (Modified author abstract)

Report on Research at AFCRL.

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ISBN 13 :
Total Pages : 336 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Report on Research at AFCRL. by : Air Force Cambridge Research Laboratories (U.S.)

Download or read book Report on Research at AFCRL. written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1972 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Announcements

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ISBN 13 :
Total Pages : 844 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Government Reports Announcements by :

Download or read book Government Reports Announcements written by and published by . This book was released on 1973 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Announcements & Index

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ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.:/5 (31 download)

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Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1973 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Index

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ISBN 13 :
Total Pages : 1080 pages
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Book Synopsis Government Reports Index by :

Download or read book Government Reports Index written by and published by . This book was released on 1973 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:

International Aerospace Abstracts

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ISBN 13 :
Total Pages : 1092 pages
Book Rating : 4.3/5 (91 download)

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Download or read book International Aerospace Abstracts written by and published by . This book was released on 1967 with total page 1092 pages. Available in PDF, EPUB and Kindle. Book excerpt:

U.S. Government Research & Development Reports

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ISBN 13 :
Total Pages : 212 pages
Book Rating : 4.:/5 (31 download)

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Download or read book U.S. Government Research & Development Reports written by and published by . This book was released on 1967 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Reflection and Transmission Coefficients for a Plasma Layer

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ISBN 13 :
Total Pages : 19 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Reflection and Transmission Coefficients for a Plasma Layer by : J. M. Scarborough

Download or read book Reflection and Transmission Coefficients for a Plasma Layer written by J. M. Scarborough and published by . This book was released on 1963 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Canadian Journal of Physics

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ISBN 13 :
Total Pages : 748 pages
Book Rating : 4.U/5 (183 download)

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Book Synopsis Canadian Journal of Physics by :

Download or read book Canadian Journal of Physics written by and published by . This book was released on 1975 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nuclear Science Abstracts

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ISBN 13 :
Total Pages : 922 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Nuclear Science Abstracts by :

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1970-04 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Bibliography of Scientific and Industrial Reports

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ISBN 13 :
Total Pages : 1188 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Bibliography of Scientific and Industrial Reports by :

Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1967 with total page 1188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

U. S. Government Research and Development Reports

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ISBN 13 :
Total Pages : 1178 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis U. S. Government Research and Development Reports by :

Download or read book U. S. Government Research and Development Reports written by and published by . This book was released on 1967-10 with total page 1178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Pandex Current Index to Scientific and Technical Literature

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Total Pages : 1096 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Pandex Current Index to Scientific and Technical Literature by :

Download or read book Pandex Current Index to Scientific and Technical Literature written by and published by . This book was released on 1971 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt: