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    The influence of film on the unconfined gas explosion tests

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    Fulltext not available
    Authors
    Bao, Q.
    Fang, Q.
    Zhang, Y.
    Yang, S.
    Chen, L.
    Li, Zhan
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Bao, Q. and Fang, Q. and Zhang, Y. and Yang, S. and Chen, L. and Li, Z. 2017. The influence of film on the unconfined gas explosion tests. Gongcheng Lixue/Engineering Mechanics. 34 (7): pp. 232-240.
    Source Title
    Gongcheng Lixue/Engineering Mechanics
    DOI
    10.6052/j.issn.1000-4750.2016.02.0091
    ISSN
    1000-4750
    School
    Department of Civil Engineering
    URI
    http://hdl.handle.net/20.500.11937/58921
    Collection
    • Curtin Research Publications
    Abstract

    © 2017, Engineering Mechanics Press. All right reserved. In order to analyze the influence of the film on the test results of the unconfined gas deflagration, a refined finite volume model was built up based on the deflagration test with hydrogen-air mixture of 10 m radius by use of the computational fluid dynamic software AutoReaGas. The comparison between the numerical results and the test data shows that, the model is able to predict the influence of the film on the gas deflagration, and the ruptured overpressure of the film in the test is about 0.5 kPa~3 kPa. Furthermore, the influence of the film on the deflagration overpressure of the hydrogen-air, acetylene-air and methane-air mixtures with the volumes of 1 m 3 , 8 m 3 , 125 m 3 and 1000 m 3 were analyzed by AutoReaGas. It is shown that the influence of the film on the deflagration overpressure decreases with the increasing of the gas volume, burning velocity and distance. The suggestion on the choice of the film in the gas explosion tests was also given.

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