Author: Mark C. JechuraPublisher:
ISBN:
Category : Navier-Stokes equations
Languages : en
Pages : 146
Book Description
Equilibrium Hydrogen-oxygen Flow Field Calculations of a High Area Ratio Nozzle Using Full Navier-Stokes Code
Author: Mark C. JechuraPublisher:
ISBN:
Category : Navier-Stokes equations
Languages : en
Pages : 146
Book Description
Masters Theses in the Pure and Applied Sciences
Author: Wade H. ShaferPublisher: Springer Science & Business Media
ISBN: 1461524539
Category : Science
Languages : en
Pages : 391
Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the though that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemi nation. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 37 (thesis year 1992) a total of 12,549 thesis titles from 25 Canadian and 153 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 37 reports theses submitted in 1992, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.
Scientific and Technical Aerospace Reports
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 538
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Masters Theses in the Pure and Applied Sciences
Author: W. H. ShaferPublisher: Springer Science & Business Media
ISBN: 9780306447112
Category : Education
Languages : en
Pages : 410
Book Description
Volume 37 (thesis year 1992) reports a total of 12,549 thesis titles from 25 Canadian and 153 US universities (theses submitted in previous years but only now reported are indicated by the thesis year shown in parenthesis). The organization, like that of past years, consists of thesis titles arrange
Masters Theses in the Pure and Applied Sciences
Author: Sade H ShaferPublisher: Springer Science & Business Media
ISBN:
Category : Education
Languages : en
Pages : 440
Book Description
Cited in Sheehy, Chen, and Hurt . Volume 38 (thesis year 1993) reports a total of 13,787 thesis titles from 22 Canadian and 164 US universities. As in previous volumes, thesis titles are arranged by discipline and by university within each discipline. Any accredited university or college with a grad
NPAC-Nozzle Performance Analysis Code
Author: Paul J. BarnhartUse of Navier-Stokes Methods for the Calculation of High-speed Nozzle Flow Fields
Author: Nicholas J. GeorgiadisPublisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
Calculation of Propulsive Nozzle Flowfields in Multidiffusing Chemically Reacting Environments
Author: High-Area-Ratio Rocket Nozzle at High Combustion Chamber Pressure: Experimental and Analytical Validation
Author: National Aeronautics and Space Adm NasaPublisher: Independently Published
ISBN: 9781723849435
Category : Science
Languages : en
Pages : 58
Book Description
Experimental data were obtained on an optimally contoured nozzle with an area ratio of 1025:1 and on a truncated version of this nozzle with an area ratio of 440:1. The nozzles were tested with gaseous hydrogen and liquid oxygen propellants at combustion chamber pressures of 1800 to 2400 psia and mixture ratios of 3.89 to 6.15. This report compares the experimental performance, heat transfer, and boundary layer total pressure measurements with theoretical predictions of the current Joint Army, Navy, NASA, Air Force (JANNAF) developed methodology. This methodology makes use of the Two-Dimensional Kinetics (TDK) nozzle performance code. Comparisons of the TDK-predicted performance to experimentally attained thrust performance indicated that both the vacuum thrust coefficient and the vacuum specific impulse values were approximately 2.0-percent higher than the turbulent prediction for the 1025:1 configurations, and approximately 0.25-percent higher than the turbulent prediction for the 440:1 configuration. Nozzle wall temperatures were measured on the outside of a thin-walled heat sink nozzle during the test fittings. Nozzle heat fluxes were calculated front the time histories of these temperatures and compared with predictions made with the TDK code. The heat flux values were overpredicted for all cases. The results range from nearly 100 percent at an area ratio of 50 to only approximately 3 percent at an area ratio of 975. Values of the integral of the heat flux as a function of nozzle surface area were also calculated. Comparisons of the experiment with analyses of the heat flux and the heat rate per axial length also show that the experimental values were lower than the predicted value. Three boundary layer rakes mounted on the nozzle exit were used for boundary layer measurements. This arrangement allowed total pressure measurements to be obtained at 14 different distances from the nozzle wall. A comparison of boundary layer total pressure profiles and analytical
The Determination of Optimum Nozzle Profiles to Delay Chemically Frozen Flow in the Expansion of High Temperature Gas Mixtures
Author: Larry Duane KunkelPublisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 80
Book Description
An approximate method is presented which yields the supersonic nozzle profile necessary to keep an expanding high temperature gas mixture approximately in chemical equilibrium. From equilibrium calculations for given chamber conditions the freeze area ratio is determined by use of a modified Bray driterion. A plot of area ratio versus a function of nozzle geometry defines a limiting nozzle angle beyond which freezing is forecast to occur. This permits an expansion angle at each area ratio to be chosen to keep the flow near equilibrium. The effectiveness of the resulting nozzle profile is evaluated by comparting exact calculations with equilibrium calculations. Contouring is shown to be effective for small nozzles when a correction factor is applied. The hydrogen-oxygen system is used as an example. (Author).