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Simulation Of Closed Chamber Burning Of Very High Rate Propellant
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Book Synopsis Simulation of Closed Chamber Burning of Very-High Rate Propellant by : Paul G. Baer
Download or read book Simulation of Closed Chamber Burning of Very-High Rate Propellant written by Paul G. Baer and published by . This book was released on 1988 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Closed chamber firings of very-high burning rate (VHBR) propellants have been conducted at the Ballistic Research Laboratory as part of the traveling charge gun program. Using standard closed chamber data reduction techniques, burning rates in the range of 10 to 300 m/s over a pressure range of 50 to 300 MPa have been measured. Pressure-time records from the firings of VHBR propellants exhibit severe pressure wave phenomena which are removed by digital filtering prior to transformation to burning rate data. Burning rate data for four VHBR propellants were used in a 1-D traveling charge code set up to simulate VHBR propellant being fired in a closed chamber. Objectives were to check consistency of the data, obtain better estimates of the data, obtain an understanding of the gas dynamic phenomena occurring in the chamber, and assess the validity of simulations produced by the 1-D traveling charge gun code. The procedure used was to match simulated data to experimental pressure-time data and adjust the burning rate data until the two curves matched. It is concluded that consistency of burning rate data in excess of 35 m/s over the pressure range of 50-150 MPa is poor. High amplitude pressure waves in the chamber create severe errors in the derived propellant burning rates.
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 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technical Reports Awareness Circular : TRAC. by :
Download or read book Technical Reports Awareness Circular : TRAC. written by and published by . This book was released on 1988-08 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Closed-Bomb Combustion of Hivelite-Based, Very High Burn Rate (VHBR) Propellant by : E. B. Fisher
Download or read book Closed-Bomb Combustion of Hivelite-Based, Very High Burn Rate (VHBR) Propellant written by E. B. Fisher and published by . This book was released on 1985 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation of the combustion characteristics of a Hivelite-based, very-high-burn-rate (VHBR) propellant was conducted. The experiments were performed in a closed chamber, called the VHBR bomb, that was specially designed and constructed for these experiments. The device was designed with the same diameter as the propellant samples in order to maintain one dimensional combustion processes and transient wave phenomena to simplify subsequent interpretation and analysis. Propellant combustion was characterized by a low burn rate (about 1 m/s) until a pressure in the vicinity of 15-20 MPa is reached. After this pressure, which may represent the propellant crushing or break pressure, the combustion rate accelerated to levels from 10 to 180 m/s, depending on other test parameters. Tests conducted at different loading densities indicated that combustion rate was a strong function of pressure. Variation of sample weight at constant loading density demonstrated that increasing the amount of unburned propellant at the time the break pressure was reached also causes burn rate and thrust to increase. A coating that makes the outside surface of the sample slippery tended to reduce the apparent burn rate but use of a coating which retarded transmission of gas pressure along the periphery of the sample increased the apparent burn rate as well as thrust. Change of mounting interface properties caused significant differences in the dynamic characteristics leading to increased thrust.
Book Synopsis Ballistics 18th International Symposium by : William G. Reinecke
Download or read book Ballistics 18th International Symposium written by William G. Reinecke and published by CRC Press. This book was released on 1999-11-10 with total page 2108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Measurements of Expanding Storable-propellant Products Simulated by Combustion of Gaseous Reactants by : Robert Friedman
Download or read book Experimental Measurements of Expanding Storable-propellant Products Simulated by Combustion of Gaseous Reactants written by Robert Friedman and published by . This book was released on 1969 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gaseous reactant combustion simulation of dimethylhydrazine and hydrazine fuel system for nonequilibrium expansion studies.
Book Synopsis Modeling and Simulation of Combustion Chamber and Propellant Dynamics and Issues in Active Control of Combustion Instabilities by : Giorgio C. Isella
Download or read book Modeling and Simulation of Combustion Chamber and Propellant Dynamics and Issues in Active Control of Combustion Instabilities written by Giorgio C. Isella and published by . This book was released on 2001 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Ludwig Stiefel Publisher :AIAA (American Institute of Aeronautics & Astronautics) ISBN 13 : Total Pages :600 pages Book Rating :4.X/5 (1 download)
Book Synopsis Gun Propulsion Technology by : Ludwig Stiefel
Download or read book Gun Propulsion Technology written by Ludwig Stiefel and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 1988 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Investigation of High Pressure Combustion Phenomena in Solid Propellants by : Norbert D'Souza
Download or read book An Investigation of High Pressure Combustion Phenomena in Solid Propellants written by Norbert D'Souza and published by . This book was released on 1973 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theoretical analysis and experimental measurements are defined for the investigation of high pressure combustion of solid propellants in ballistic devices. A new and accurate heat flux measurement technique is used for determination of the equation of state for the propellant gas. A method of determining the burning rate for the solid propellant from the closed chamber tests is described. The interior ballistic theory is reviewed in the context of a high pressure combustion device. Design and instrumentation of the closed chamber test apparatus for the equation of state and the burning rate measurements are included. An open ballistic chamber test apparatus with a moving projectile, for measurement of projectile friction and for verification of the interior ballistic performance at high chamber pressures is described. (Author).
Book Synopsis Combustion Studies of Very High Burning Rate (VHBR) Propellants by : Arpad A. Juhasz
Download or read book Combustion Studies of Very High Burning Rate (VHBR) Propellants written by Arpad A. Juhasz and published by . This book was released on 1982 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: The burning and impetus characteristics of a family of very high burning rate (VHBR) boron-hydride-based propellants were determined using the closed chamber technique. A systematic examination of burning behaviour vs chemical composition was made. The samples studied included bare, steel cased, and larger full bore cylindrical samples. Pressure time data were reduced to apparent linear burning rates using the conventional laminar burning assumptions made in closed chamber reductions. The results indicate that tailoring sample burning rates between 1 and 500 m/s may be possible. On the other hand, unlike conventional propellants, VHBR propellant burning rates are thought to depend not only on sample formulation but also on porosity, physical integrity, sample diameter, and confinement. These results point to a possible burning-with-breakup mechanism for these materials.
Book Synopsis Performance of a Composite Solid Propellant at Simulated High Altitudes by :
Download or read book Performance of a Composite Solid Propellant at Simulated High Altitudes written by and published by . This book was released on 1959 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 17th JANNAF Combustion Meeting, NASA Langley Research Center, Hampton, Virginia, September 22-26, 1980 by :
Download or read book 17th JANNAF Combustion Meeting, NASA Langley Research Center, Hampton, Virginia, September 22-26, 1980 written by and published by . This book was released on 1980 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Instrumentation for a Space Simulation Chamber by : H. R. FARRAH
Download or read book Study of Instrumentation for a Space Simulation Chamber written by H. R. FARRAH and published by . This book was released on 1962 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: AD-282 519Div. 10 U (TISTM/MS) OTS price $5.60 Ballistic Research Labs., Aberdeen Proving Ground, Md. AN EXPERIMENTAL INVESTIGATION OF POSSIBLE ALUMINUM ADDITIVE CONTRIBUTIONS TO UNSTABLE COMBUSTION IN SOLID ROCKET PROPELLANTS, by Leland A. Watermeier, William P. Aungst, and Samuel P. Pfaff. July 62, 61p. incl. illus. tables, 13 refs. (BRL rept. no. 1168) (Proj. 517-06-002) Unclassified report DESCRIPTORS: *Rocket propellants, *Combus tion, Aluminum, Solid rocket propellants, Photographic analysis, Additives, Powder metals. Composite - double base rocket propellant slabs which contained different concentrations and particle sizes of aluminum were burned in a transparent-walled chamber. The chamber was exhausted to the atmosphere. The slabs were ignited in cigarette fashion and burned under ambient nitrogen pressures of 200-800 psi. Experimental runs were made under steady flow conditions and under oscillating conditions with a siren rotating over the exhaust port. Motion pictures were taken of the burning process at high framing rates. Data on droplet burning and concentrations in various regions above the propellant surfaces were obtained from individual frames of the film. (Author).
Book Synopsis Space Modeling and Simulation by : Larry B. Rainey
Download or read book Space Modeling and Simulation written by Larry B. Rainey and published by AIAA. This book was released on 2004 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was sponsored by the U.S. Air Force Academy Space Mission Analysis and Design Program with support from program offices at the Air Force Space and Missile Systems Center, the National Reconnaissance Office, the U.S. Department of Transportation, and organizations within the National Aeronautics and Space Administration.
Book Synopsis Internal Combustion Processes of Liquid Rocket Engines by : Zhen-Guo Wang
Download or read book Internal Combustion Processes of Liquid Rocket Engines written by Zhen-Guo Wang and published by John Wiley & Sons. This book was released on 2016-05-17 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book concentrates on modeling and numerical simulations of combustion in liquid rocket engines, covering liquid propellant atomization, evaporation of liquid droplets, turbulent flows, turbulent combustion, heat transfer, and combustion instability. It presents some state of the art models and numerical methodologies in this area. The book can be categorized into two parts. Part 1 describes the modeling for each subtopic of the combustion process in the liquid rocket engines. Part 2 presents detailed numerical methodology and several representative applications in simulations of rocket engine combustion.
Book Synopsis Burning Rates of Standard Army Propellants in Strand Burner and Closed Chamber Tests by :
Download or read book Burning Rates of Standard Army Propellants in Strand Burner and Closed Chamber Tests written by and published by . This book was released on 1977 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: Burning rate data determined over twenty years ago at the Ballistic Research Laboratory (BRL) and disseminated to only a limited audience have been referenced in several recent reports. This report provides a complete compilation of the experiments, the data, and the analyses to provide a usable reference for current investigations. It compares strand burner and closed chamber rates for the same propellant. Standard army gun propellants (M1, M2, M5, M6, M8, M10, and M17) were re-extruded into 3mm (1/8 in.) and 6mm (1/4 in.) strands for strand burner tests at pressures of 3.4 to 310 MPa (500 to 45,000 psi) and in closed chamber tests at densities of loading (delta) of 0.089, 0. 174, and 0.258 g/cc. Fifteen additional lots of standard propellants were tested in the closed chamber at densities of loading of 0.084 and 0.140 g/cc. The report presents the raw data, method of calculation for burning rate, and coefficients for various burning rate equations. The report also proposes an empirical relationship between the propellant flame temperature, and the burning rate parameters.
Book Synopsis Nonsteady Burning and Combustion Stability of Solid Propellants by : Martin Summerfield
Download or read book Nonsteady Burning and Combustion Stability of Solid Propellants written by Martin Summerfield and published by AIAA. This book was released on 1992 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
