1–20 von 30 Ergebnissen
|

    Chemical-release mission of CRRES

    Reasoner, David L. | NTRS | 1992
    from the chemical-release experiments performed to date are (1) demonstration of critical velocity ionization over a narrow range of parameter ...

    Chemical recombination in an expansion tube

    Bakos, Robert J. / Morgan, Richard G. | NTRS | 1994
    The note describes the theoretical basis of chemical recombination in an expansion tube which simulates energy, Reynolds number, and stream ...

    Chemical launch system options for microspacecraft

    Sargent, Mark G. | NTRS | 1989
    attention is given to the capabilities of Piggyback, small launch vehicles, and large launch vehicles. It is noted that Piggyback options on the ...

    Direct numerical simulations of a reacting mixing layer with chemical heat release

    Mcmurtry, P. A. / Jou, W.-H. / Riley, J. J. et al. | NTRS | 1986

    Lunar missions using advanced chemical propulsion: System design issues

    Palaszewski, Bryan | NTRS | 1994
    To provide the transportation of lunar base elements to the moon, large high-energy propulsion systems will be required. Advanced ...

    Development of a Premixed Combustion Capability for Dual-Mode Scramjet Experiments

    Rockwell, Robert D. / Goyne, Christopher P. / Chelliah, Harsha et al. | NTRS | 2017
    reacting flows. The combustion environment and the turbulent flames at the heart of these engines are difficult to simulate and study in the ...
    Verlag: American Institte of Aeronautics and Astronautics

    Ablation of ATJ Graphite at High Temperatures

    John H Lundell / Robert R Dickey | NTRS | 1973
    Results of an extensive experimental program on the ablation of ATJ graphite in air at surface pressures of 0.3 to 4.4 atm and surface ...
    Verlag: American Institute of Aeronautics and Astronautics

    Prediction of self-pressurization rate of cryogenic propellant tankage

    Hochstein, John I. / Ji, Hyun-Chul / Aydelott, John C. | NTRS | 1990
    chemical-propulsion orbit transfer vehicle. The computational predictions show that even small amounts of subcooling will significantly decrease ...

    Surface composition of solid-rocket exhausted aluminum oxide particles

    Cofer, Wesley R., III / Winstead, Edward L. / Key, Lawrence E. | NTRS | 1989
    potential physical/chemical modification of the SRPA particle surfaces and their corresponding interaction with the atmosphere. ...

    The resources of Mars for human settlement

    Meyer, Thomas R. / Mckay, Christopher P. | NTRS | 1989
    Spacecraft exploration of Marshas shown that the essential resources necessary for life support are present on the Martian surface. The key ...

    Computation of unsteady shock-induced combustion using logarithmic species conservation equations

    Wilson, Gregory J. / Sussman, Myles A. | NTRS | 1993
    usefulness of the ballistic-range experiments for the validation of numerical techniques and chemical kinetic models is also demonstrated. ...

    Evaluation of the Munich Method for modeling rocket engine performance

    Zeleznik, Frank J. | NTRS | 1993
    chemical equilibrium program. An examination of the Munich Method shows that it contains several flaws. If these defects are corrected then the ...

    Gaseous environment of the Shuttle early in the Spacelab 2 mission

    Pickett, Jolene S. / Murphy, Gerald B. / Kurth, William S. | NTRS | 1988
    seen during another experiment's gas purge. Orbiter chemical-release effects include: pressure increases of 200 percent up to 7 x 10 to the ...

    Expert systems for automated maintenance of a Mars oxygen production system

    Huang, Jen-Kuang / Ho, Ming-Tsang / Ash, Robert L. | NTRS | 1992
    toward developing the methodology required to enable autonomous operation and control of these simple chemical processors at Mars. Failure ...

    Recent trends in stratospheric ozone - Implications of ozone and temperature correlation

    Chandra, S. | NTRS | 1990
    the linear trend in ozone from 1979 to 1986. The ozone and temperature variabilities are coupled through chemical and dynamical processes. In ...

    A degree of controllability definition - Fundamental concepts and application to modal systems

    Viswanathan, C. N. / Longman, R. W. / Likins, P. W. | NTRS | 1984
    , such as the control of future, very large, flexible spacecraft and certain chemical process control problems, the question of how to choose the ...

    A simplified hydrocarbon reaction mechanism for combustion applications

    Jachimowski, C. J. | NTRS | 1985
    A simplified chemical kinetic reaction mechanism for the combustion of a hydrocarbon fuel is presented and discussed. The observed kinetic ...

    Space Shuttle externally induced environment compared with Skylab's natural environment

    Susko, Michael | NTRS | 1990
    Electret measurements obtained of the particulate contamination environment within the Space Shuttle Orbiter's cargo bay are presently ...

    Magnesium fluoride as energy storage medium for spacecraft solar thermal power systems

    Lurio, Charles A. | NTRS | 1992
    high heat of fusion per unit mass at a high melting point (1536 K). Theoretical evaluation showed the basic chemical compatibility of liquid ...