Detailed numerical and experimental studies are presented for unheated flows of hydrogen and nitrogen through a small nozzle. The nozzle geometry and flow conditions considered provide rarefied flows that are representative of resistojet thrusters employed on spacecraft for control. Computational results are obtained with the direct simulation Monte Carlo method. Experimental data are obtained using two different techniques. Measurements of axial velocity and translational temperature of hydrogen are preformed using coherent anti-Stokes Raman scattering. Data are taken along the nozzle axis and in the exit plane of the nozzle. Measurements of thrust are obtained using a thrust stand for pure hydrogen, pure nitrogen, and for mixtures of the two. In all cases, the numerical predictions and experimental measurements are in excellent agreement.


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    Title :

    Computational and experimental investigations of rarefied flows in small nozzles


    Additional title:

    Rechnerische und experimentelle Untersuchung verdünnter Strömungen in kleinen Düsen


    Contributors:

    Published in:

    AIAA Journal ; 34 , 11 ; 2320-2326


    Publication date :

    1996


    Size :

    7 Seiten, 10 Bilder, 3 Tabellen, 15 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





    Computational and experimental investigations of rarefied flows in small nozzles

    Boyd, Iain D. / VanGilder, Douglas B. / Beiting, Edward J. | AIAA | 1996


    Rarefied gas flow through two-dimensional nozzles

    DE WITT, KENNETH / JENG, DUEN-REN / KEITH, JR., THEO | AIAA | 1989