Temperature distributions of a cesium-seeded hydrogen-oxygen supersonic free jet

by Shiying Wang

Publisher: National Aeronautics and Space Administration, Scientific and Technical Information Office, Publisher: for sale by the National Technical Information Service in Washington, Springfield, Va

Written in English
Published: Pages: 21 Downloads: 780
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Subjects:

  • Plasma jets.,
  • Physics.,
  • Spectrum analysis.

Edition Notes

StatementShih-Ying Wang and J. Marlin Smith.
SeriesNASA technical paper ; 1162, NASA technical paper -- 1162.
ContributionsSmith, J Marlin., United States. National Aeronautics and Space Administration. Scientific and Technical Information Office.
The Physical Object
Pagination21 p. :
Number of Pages21
ID Numbers
Open LibraryOL17537265M

Theoretical model for high-power annular continuous wave laser beams on coated optical components--transient temperature distribution James R. Palmer Proc. SPIE , High Heat Flux Engineering II, pg (12 November ); doi: /   Simplified Two-Time Step Method for Calculating Combustion Rates and Nitrogen Oxide Emissions for Hydrogen/Air and Hydorgen/Oxygen [Molnar, Melissa, Marek, John C., Nasa Technical Reports Server (Ntrs)] on *FREE* shipping on qualifying offers. Simplified Two-Time Step Method for Calculating Combustion Rates and Nitrogen Oxide Emissions for Author: Melissa Molnar, C. John Marek. Technical documents from NASA. We recently reported that 19 wk of heavy resistance training caused a decrease in the percentage of type IIb and an increase in the percentage of type IIa fibers as determined by qualitative histochemical analyses of myofibrillar adenosinetriphosphatase activity of biopsies of musculus vastus lateralis (Hather et al. Acta Physiol. Scand. . You can write a book review and share your experiences. Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them.

SUPERSONIC JET SPECTROSCOPY OF SYNTHETIC FOLDAMERS, MULTICHROMOPHORES, AND THEIR WATER CONTAINING CLUSTERS Doctor of Philosophy Timothy Zwier Scott A. McLuckey Dor Ben-Amotz Lyudmila Slipchenko Timothy Zwier R. Author: Evan Gardner Buchanan. Simple equations for calculating temperature distributions in radiating gray gases / (Washington, D.C.: National Aeronautics and Space Administration ; [For sale by the Clearinghouse for Federal Scientific and Technical, Springfield, Virginia ], ), by Robert G. Ragsdale, Albert F. Kascak, Lewis Research Center, and United States. (c) The temperature on. the surface of the sun is about C. What is this. temperature in degrees Fahrenheit? (d) The ignition. temperature of paper is F. What is the temperature. in degrees Celsius? Convert the following temperatures to kelvin: (a) C, the melting point of sulfur, (b) C, the. normal body temperature, (c. Gregor J., Hrabovský M., Jakubová I., Šenk J.: Distribution of mass fractions in the free jet of hot gas mixture. High Temperature Materials and Processes 9 [1] () Chumak O., Kopecký V., Konrád M., Kavka T., Hrabovský M.: Effect of pressure on behavior of anode attachment of dc arc plasma torch.

Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them. 1 Software Architecture: 4th European Conference, ECSA , Copenhagen, Denmark, August , Start studying Global Carbon Cycle. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Start a free trial of Quizlet Plus by Thanksgiving | Lock in 50% off all year Try it free. A long line carrying a uniform linear charge density +50?C/m runs parallel to and cm from the surface of a large, flat plastic sheet that has a uniform surface charge density of ?C/m^2 on one • A long line carrying a uniform linear charge density + uC/m runs parallel to and cm from the surface of a large, flat plastic sheet that has a uniform surface charge density . The hydrogen economy is the use of hydrogen as a low carbon fuel, particularly for heating, hydrogen vehicles, seasonal energy storage and long distance transport of energy.. The hydrogen economy is proposed as part of the future low-carbon order to phase out fossil fuels and limit global warming, hydrogen is being considered as its combustion only releases clean .

Temperature distributions of a cesium-seeded hydrogen-oxygen supersonic free jet by Shiying Wang Download PDF EPUB FB2

Get this from a library. Temperature distributions of a cesium-seeded hydrogen-oxygen supersonic free jet. [Shih-ying Wang; J Marlin Smith; United States.

National Aeronautics and Space Administration. Scientific and Technical Information Office.]. Radial distributions of temperature were determined spectroscopically in a cesium- seeded, hydrogen-oxygen plasma jet. The plasma was generated at combustion cham- ber pressures ranging from 0.

5 to 2. 0 megapascals and for various seed ratios (1 to. Temperature distributions of a cesium-seeded hydrogen-oxygen supersonic free jet: Authors: Wang, S. Y coefficients for conditions of local thermodynamic equilibrium using particle densities generated by a two-dimensional free jet computer program.

Temperature results show the inherent effects of compression and expansion pressure waves. Temperature distributions of a cesium-seeded hydrogen-oxygen supersonic free jet. By J. Smith and S. Wang. Abstract. The hydrogen-oxygen plasma was generated at combustion chamber pressures ranging from to megapascals and for various seed ratios (1 to 10 percent).

The plasma was observed as the atmospheric exhaust from a Mach 2 Author: J. Smith and S. Wang. Temperature distributions of a cesium-seeded hydrogen-oxygen supersonic free jet / By Shih-ying. Wang, joint author. Marlin Smith and United States. National Aeronautics and Space Administration. Scientific and Technical Information Office.

Abstract. Issued Feb. Includes bibliographical of access: Internet. Temperature measurements were performed in a shock-tunnel-generated free jet of hydrogen/oxygen reaction products diluted in argon with a nonsimultaneous, two-excitation-line planar laser-induced. shock free flows up to low supersonic speeds and low heat transfer rate (Wilcox, ).

When a cold supersonic jet (K) enters into a hot atmosphere of around K, it results in high heat transfer from the hot environment to the jet due to large temperature difference.

Wilcox () recommended to use 𝑃 = for free shear flow and highCited by: 2. Shock-wave interactions at impingement of impulsive supersonic jet upon an obstacle. Numerical investigation of induction-zone development in hydrogen-oxygen mixtures. Temperature distribution in free-piston compressors.

The focus of this study is to design a combustion system able to sustain hypersonic flight at Mach 8. A Dual-Mode Free-Jet combustion chamber design, first tested in by NASA, is being adapted to run on hydrogen fuel instead of ethylene while addressing the excessive thermal heat load. This study is part of the FAME (Flight at Mach Eight) project, with the primary objective to Author: Maxim Cooper, Ashish Alex Sam, Apostolos Pesyridis.

The process involved in chemical energy release by combustion in a supersonic, constant pressure, hydrogen-air laminar mixing layer was studied computationally, with. A series of firing tests of the hydrogen-fueled detonation ramjet model is performed in the pulsed wind tunnel at the approach air stream Mach number ofthe stagnation temperature of K, and the observation time of 50 ms in the range of the overall air-to-hydrogen ER Cited by: 7.

An axial flow gas turbine stage develops MW at a mass flow rate of kg/s. At the stage entry the stagnation pressure and temperature are kPa and °C, respectively. The static pressure at exit from the nozzle is kPa and the corresponding absolute flow direction is 72° to the axial direction.

64 Combustion Fundamentals Chap. 2 The large quantity of nitrogen diluent substantially reduces the mole fractions of the combustion products from the values they would have in its absence.

Example Combustion ofOctane in Air Detennine the stoichiometric fuel/air mass ratio and product gas composition for combus­ tion ofoctane (CSH1S) in air. Fei Deng, Ning Liu, Xiang-yan Zhang and Liu-yi Zhang Numerical analysis of hydrogen-oxygen combustion in Combustion Light Gas gun with detailed kinetic mechanisms, ().Cited by:   The results of investigation of the plume structure in the case of diffusion combustion of hydrogen in a cocurrent supersonic high-enthalpy off-design air jet are presented.

Based on the registration of radiation within the wavelength range of – nm across and along the flame, a three-dimensional tomographic reconstruction of the plume was obtained, Cited by: 6.

Supersonic Combustion in Air-Breathing Propulsion Systems for Hypersonic Flight (TDLAS) (Liu et al. ) to measure spatiotemporal distributions of temperature and water vapor concentration in the burnt gases at the combustor exit.

As of the date of publication of this article, however, the data acquired during the flight test are of Cited by: They USE shock waves for chemical kinetics studies, for materials studies, and smashing kidney stones; they STUDY the phenomena associated with flows involving shock waves, such as supersonic flow, explosions, detonations, volcanic eruptions, and, in this symposium, even such with-it topics as impact of Shoemaker-Levy on Jupiter and blast waves.

Temperature and composition of a plasma obtained by seeding a cyanogen-oxygen flame with cesium (NASA technical note) [Hord, Richard A] on *FREE* shipping on qualifying offers. Temperature and composition of a plasma obtained by seeding a cyanogen-oxygen flame with cesium (NASA technical note)Author: Richard A Hord.

Ultraviolet photoelectron spectroscopy (UPS) and electron spectroscopy by deexcitation of metastable noble gas atoms (MDS) were used to follow the continuous oxidation of Cs films.

While UPS has a finite information depth, MDS probes only the properties of the outermost atomic layer. Small doses of O 2 cause the formation of a ‘‘monolayer’’ of Cs 1 1 O 3 in which the O 2 Cited by: ESTIMATES OF OPTIMAL OPERATING CONDITIONS FOR HYDROGEN-OXYGEN CESIUM-SEEDED MAGNETOHYDRODYNAMIC POWER GENERATOR J.

Marlin Smith and Lester D. Nichols Lewis Reseurch Center Cleuelund, Ohio 35 NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON, D. American Institute of Aeronautics and Astronautics Sunrise Valley Drive, Suite Reston, VA   The problem of continuous spin detonation in a supersonic flow in a flow-type annular combustor is considered in a two-dimensional unsteady formulation.

The dynamics of the detonation wave in a hydrogen-oxygen mixture with isentropic and shock-wave compression of the flow in the input diffuser is studied. It is shown that the mass flow rate of the mixture Cited by: 7. Expanding supersonic plasma jet generated in dc water-stabilized arcs Co-investigator Provider: Temperature Distribution of Asymmetrically Current Carrying Thermal Plasma Jet.

Proceedings of 17th Symposium on Plasma Physics and Technology. Study of non-equilibrium effects in hydrogen-oxygen thermal plasma JET. International Symposium on. From a heat transfer viewpoint, radiation from a soot cloud is predominantly affected by the particle size distribution and can be considered independent of the chemical composition Soot optical properties are relatively insensitive to temperature changes at elevated temperatures, but as shown in Figureroom temperature values.

the temperature of the mixture will be higher at low equivalence ratios, and because ignition time is a HYDROGEN JET FLAME-HOLDING IN SUPERSONIC CROSS-FLOW Full text of "NASA Technical Reports Server (NTRS) Small hydrogen/oxygen rocket flowfield behavior from heat flux measurements" See other formats NASA Technical Memorandum AIAA Small Hydrogen/Oxygen Rocket Flo wfield Behavior From Heat Flux Measurements B.D.

Reed Lewis Research Center Cleveland, Ohio Prepared for the. provides the latest news on physics, materials, nanotech, science and technology. Updated Daily. An Introduction to Thermal Spray 10 / 24 High Velocity Oxy-Fuel Spray (HVOF) The high velocity oxy-fuel spray (HVOF) process is a relatively recent addition to the family of thermal spray processes.

As it uses a supersonic jet, setting it apart from conventional flame spray, the speed of particle impact on the substrate is. National Advisory Committee for Aeronautics: The effect of increase in combustion-air inlet temperature from 80 to degrees F on the sea-level performance of a inch-diameter pulse-jet engine / (Washington, D.C.: National Advisory Committee for Aeronautics, []), also by Michael F.

Valerino, Richard F. Hughes, Robert H. Essig, and. Supersonic jet noise and the high speed civil transport. JOHN SEINER and; Free-jet test capability for the aeropropulsion systems test facility. DUESTERHAUS and; Experimental determination of plume properties in full-scale hydrogen-oxygen rockets.

BROWN, C. LIMBAUGH, V. ZACCARDI and; R. ESKRIDGE. Mašláni A., Sember V.: Rotational distribution of OH molecules in supersonic thermal plasma jet. High Temperature Materials and Processes 13 [2] () [European High Temperature Plasma Processes (HTPP)/10th./.

Patras .In this study, numerical simulations were conducted to confirm the possibility of improved mixing performance by using a fluidic oscillator as a fuel injector.

Three-dimensional URANS non-reacting simulations were conducted to examine air–fuel mixing in a supersonic flow field of Mach The numerical methods were validated through simulations of the oscillating flow Author: Eun Cheol Lee, Seung-Won Cha, Hee-Soo Kwon, Tae-Seong Roh, Hyoung Jin Lee.Plasma Top: Lightning and neon lights are commonplace generators of plasma.

Bottom left: A plasma globe, illustrating some of the more complex plasma phenomena, including filamentation. Bottom right: A plasma trail from the Space Shuttle Atlantis during re-entry into Earth's atmosphere, as seen from the International Space Station.

Plasma (from Ancient Greek .