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    A numerical method of calculating the consequence of heterogeneous mixed vapor cloud explosion

    Access Status
    Fulltext not available
    Authors
    Yang, S.
    Fang, Q.
    Zhang, Y.
    Chen, L.
    Bao, Q.
    Li, Zhan
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Yang, S. and Fang, Q. and Zhang, Y. and Chen, L. and Bao, Q. and Li, Z. 2014. A numerical method of calculating the consequence of heterogeneous mixed vapor cloud explosion. Natural Gas Industry. 34 (6): pp. 155-161.
    Source Title
    Natural Gas Industry
    DOI
    10.3787/j.issn.1000-0976.2014.06.025
    ISSN
    1000-0976
    School
    Department of Civil Engineering
    URI
    http://hdl.handle.net/20.500.11937/58255
    Collection
    • Curtin Research Publications
    Abstract

    The computational fluid dynamics (CFD) models are increasingly being used to assess the consequences of vapor cloud explosion (VCE). However, the simulated results are greater than the actual measured and field observation values because AutoReaGas conservatively assumed that the concentration field is uniform and stoichiometric. Therefore, AutoReaGas was revised through embedding an interface code which could replace with the actual heterogeneous concentration field calculated by Fluent. The proposed interface code was validated against experimental measurements of VCE caused by natural diffusion. Thus, the variables such as temperature, pressure, etc. were obtained when gas explosion occurred. Comparing between the simulation results and previous experimental results, we concluded that the revised AutoReaGas can improve the calculation accuracy and its feasibility is also validated. A successful case study of a certain salt cavern type of underground gas storage (UGS) not only proves this revised numerical method is practical but further expands the application range of the AutoReaGas.

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