To study the flow character in a micro nozzle.

    Design/methodology/approach

    The flow in the micro nozzle is simulated using the Direct Simulation Monte-Carlo (DSMC) method. Considering characteristics of high-temperature gas flow, the Cercignani-Lampis-Lord (CLL) gas-surface interaction model is adopted in the simulation of high-temperature gas flow in the Laval nozzle at different inlet pressures and temperatures.

    Findings

    The results showed that as the temperatures of inlet flow increased, the thrust efficiency will increased accordingly, however, the influence of inlet pressure variety on the nozzle performance is insignificant.

    Originality/value

    A useful reference to the design and performance improvement of micro thruster and MEMS power system.


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    Title :

    Gas flow simulation in a micro nozzle


    Contributors:
    Yang, Zhao (author) / Hai Wei, Yang (author)

    Published in:

    Publication date :

    2006-09-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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