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    Numerical simulation of the spreading of aerated and nonaerated turbulent water jet in a tank with finite water depth

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    Publication date
    2014-04-18
    Author
    Guo, Yakun
    Keyword
    Numerical simulation; Turbulence; Jet; Air content
    Rights
    (c) 2014 ASCE. Full-text reproduced in accordance with the publisher's self-archiving policy.
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    Numerical simulations are carried out to investigate the spreading of two-dimensional plane turbulent aerated and nonaerated jets in a tank filled with finite water depth. A multiphase model is applied to simulate the problem under investigation. The governing equations, their numerical scheme and the boundary conditions are presented. Aerated and non-aerated turbulent jets are simulated for a range of the jet velocity and width at exit, the initial air content at exit and the water depth in tank. The simulated results show that a self-similar Gaussian velocity distribution exists from the distance downstream being larger than five jet slot width for both the aerated and nonaerated jets. Good agreement between the simulated velocity profiles and available laboratory experiments is obtained. The simulated slope of the jet velocity decay along the jet centreline is in good agreement with the experimental measurements. The effect of air content on pressure distribution and the maximum impinging hydrodynamic pressure at the tank bottom is discussed.
    URI
    http://hdl.handle.net/10454/9535
    Version
    Accepted Manuscript
    Citation
    Guo Y (2014) Numerical simulation of the spreading of aerated and nonaerated turbulent water jet in a tank with finite water depth. Journal of Hydraulic Engineering. 140(8)
    Type
    Article
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    Engineering and Digital Technology Publications

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