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Influence Of Chemical Kinetic And Turbulent Transport Coefficients On Afterburning Rocket Exhaust Plume Properties
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Book Synopsis Influence of Chemical Kinetic and Turbulent Transport Coefficients on Afterburning Rocket Exhaust Plume Properties by : H. S. Pergament
Download or read book Influence of Chemical Kinetic and Turbulent Transport Coefficients on Afterburning Rocket Exhaust Plume Properties written by H. S. Pergament and published by . This book was released on 1970 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influence of chemical kinetic and turbulent transport coefficients on afterburning rocket exhaust plume properties was analyzed in terms of predicted radar attenuations transverse to solid propellant plumes. A model of parallel turbulent mixing and nonequilibrium combustion and ionization was used to determine whether varying these coefficients, which are input data to the model, over their ranges of uncertainty has a significant effect on the predicted attenuation. The results of the study demonstrate that significant differences in predicted attenuation levels can result when the important reaction rate and turbulent transport coefficients are varied within their respective error bounds. This establishes the framework within which to interpret radar attenuation data taken at sea level and under simulated altitude conditions. It is also shown that a better laboratory determination of the rate coefficient for the dominant charge-producing reaction, K + Cl yielding K(+) + Cl( - ), is of particular importance if more accurate attenuation predictions are to be made. It was concluded that realistic calculations of solid propellant exhaust plume electrical properties must take chemical kinetics into account. (Author).
Download or read book NASA Technical Note written by and published by . This book was released on 1976 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Kinetic/Gas Dynamic/Particle Interactions in Rocket Nozzle and Exhaust Plume Flows by :
Download or read book Chemical Kinetic/Gas Dynamic/Particle Interactions in Rocket Nozzle and Exhaust Plume Flows written by and published by . This book was released on 1976 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of the accomplishments achieved under this AFOSR contract is presented. Among the most notable are: (1) the development and demonstration of a fully-coupled rocket nozzle code (FULLNOZ) which, in calculating nozzle flow properties, couples the effects of nonequilibrium chemistry, gas/particle thermal and dynamic nonequilibrium, turbulent mixing across streamtubes and turbulent wall boundary layers and (2) the development of a phenomeno-logical model for the interpretation of IR radiation data from subscale liquid propellant rocket motor plumes; the model accounts for the effects of unburned fuel on rocket nozzle and after-burning plume properties.
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1973 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Entrained Water and Strong Turbulence on Afterburning Within Solid Rocket Motor Plumes by : Richard I. Gomberg
Download or read book Effects of Entrained Water and Strong Turbulence on Afterburning Within Solid Rocket Motor Plumes written by Richard I. Gomberg and published by . This book was released on 1978 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Combined Experimental-analytical Investigation of Afterburning Solid Rocket Exhaust Plume Properties to Improve Signature Level Prediction Capability by :
Download or read book Combined Experimental-analytical Investigation of Afterburning Solid Rocket Exhaust Plume Properties to Improve Signature Level Prediction Capability written by and published by . This book was released on 1990 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes experimental work performed on a high-speed pre-mixed hydrogen-air jet flame in a co-flowing annular air flow in the presence and absence of base flow at the exit. Includes details on the high-speed flame in a coaxial air facility which was designed, built, and tested to simulate (in a first approximation) rocket exhaust flow conditions. In addition, a new high spatial resolution computer-controlled three-dimensional gear was built to traverse the investigated flow field. The main experimental tool was a two-dimensional laser Doppler velocimeter with data acquisition and processing system. The tool was used to measure the two main velocity components. Other measurements included turbulence intensities and mean temperatures at various downstream sections. The measured initial and flow field data will serve to evaluate the validity of various turbulence models and to predict the structure of rocket exhaust plumes. Moreover, the experiments established the effect of the base flow on the turbulence structure of the exhaust plume.
Book Synopsis A computer simulation of the afterburning processes occurring within solid rocket motor plumes in the troposphere by : Richard I. Gomberg
Download or read book A computer simulation of the afterburning processes occurring within solid rocket motor plumes in the troposphere written by Richard I. Gomberg and published by . This book was released on 1976 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Frederick S. Simmons Publisher :AIAA (American Institute of Aeronautics & Astronautics) ISBN 13 : Total Pages :312 pages Book Rating :4.3/5 (91 download)
Book Synopsis Rocket Exhaust Plume Phenomenology by : Frederick S. Simmons
Download or read book Rocket Exhaust Plume Phenomenology written by Frederick S. Simmons and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 2000 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new book deals with the phenomenology of rocket exhaust plumes as the targets of space-based surveillance systems. Topics include the physical and chemical processes in rocket engines and their exhaust plumes, particularly in regard to flow properties, gas dynamics, and radiative mechanisms that are responsible for the generation of emission in rocket exhaust plumes at infrared and other wavelengths. System designers in a number of defense-related areas will be able to put the information in this book to immediate use.
Download or read book AIAA Bulletin written by and published by . This book was released on 1970 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Entrained Water and Strong Turbulence on Afterburining Within Solid Rocket Motor Plumes by : Richard I. Gomberg
Download or read book Effects of Entrained Water and Strong Turbulence on Afterburining Within Solid Rocket Motor Plumes written by Richard I. Gomberg and published by . This book was released on 1978 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Kinetic Reaction Coefficients in Rocket Exhaust Plumes by : Kaare J. Nygaard
Download or read book Kinetic Reaction Coefficients in Rocket Exhaust Plumes written by Kaare J. Nygaard and published by . This book was released on 1977 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pergament and Jensen recently have developed a model for estimating the densities of neutral and charged species for an afterburning plume of a solid fuel rocket as a function of distance along the plume. They have compared the predicted electron densities with experimental radar cross section measurements of electron density and find agreement at least within an order of magnitude. The predictions of the model are dependent on the accuracy with which the rate constants used are known. This report describes the work done under AFOSR 74-2672 toward rate constant measurements for those reactions that Pergament and Jenson pointed out as critical to the model and poorly known; dissociative attachment of electrons in HC1, collisional ionization of potassium and chlorine, and three body recombination of potassium. The reactions are closely related in the rocket plume, but diverse experimental procedures are required to measure the rates of the reactions. Potassium is a contaminant of the perchlorate oxidizer in some solid fuels, but because of its low ionization potential, it can make an inordinately large contribution to ionization in the plume.
Book Synopsis The Production of Nitric Oxide in the Troposphere as a Result of Solid-rocket-motor Afterburning by : Roger Bell Stewart
Download or read book The Production of Nitric Oxide in the Troposphere as a Result of Solid-rocket-motor Afterburning written by Roger Bell Stewart and published by . This book was released on 1976 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Hydronautics written by and published by . This book was released on 1971 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atmospheric Effects of Chemical Rocket Propulsion by : American Institute of Aeronautics and Astronautics
Download or read book Atmospheric Effects of Chemical Rocket Propulsion written by American Institute of Aeronautics and Astronautics and published by . This book was released on 1991 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of the AIAA. by : American Institute of Aeronautics and Astronautics
Download or read book Publications of the AIAA. written by American Institute of Aeronautics and Astronautics and published by . This book was released on 1970 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theory on Afterburning in a Low-altitude Rocket Exhaust Plume by : Richard Shao-Lin Lee
Download or read book Theory on Afterburning in a Low-altitude Rocket Exhaust Plume written by Richard Shao-Lin Lee and published by . This book was released on 1968 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: An improved aerodynamic model is proposed for the exhaust plume issuing from a low-altitude rocket nozzle exit into quiescent ambient air in which chemical reactions and compressibility predominate. The model is based on the presently available knowledge and established aerodynamic principles for the various flow regimes involved. The major assumptions made are individually substantiated by related experimental evidence in existing literature. A theoretical analysis is carried over the whole flow region based on the Karman's integral approach to find solutions for the gross aerodynamic and thermodynamic behavior of the plume. Theory incorporating on empirically derived constants provides the required radial distribution function for the integration. Solutions are obtained for the velocity, density, temperature and chemical composition fields for extended regions of the plume. These results will provide the much needed framework for the understanding of the elements which contribute to the phenomenon of radar attenuation of rocket exhaust plumes. (Author).
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 1973 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:
