AbstractMEMS micro-thruster is promising for future applications in precision formation flying missions. This paper presents performance evaluation and two-phase flow pattern visualization of a vaporized liquid micro-thruster (VLM). Micro-thrust force of several milli-Newtons was measured by a test rig with a lever. Flow patterns in the micro-thruster chip were visualized by a high speed camera bonded with a microscope. We found that flow patterns influenced its specific impulse and there were several types of flow boiling patterns in the thruster chip. Thrust instability was discussed as well. The results are helpful to understand flow characteristics of a VLM and improve its performance.


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    Titel :

    Performance evaluation and flow visualization of a MEMS based vaporizing liquid micro-thruster


    Beteiligte:
    Cen, J.W. (Autor:in) / Xu, J.L. (Autor:in)

    Erschienen in:

    Acta Astronautica ; 67 , 3-4 ; 468-482


    Erscheinungsdatum :

    2010-04-08


    Format / Umfang :

    15 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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