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    Entropy approach for 2D velocity distribution in open-channel flow

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    Entropy approach for 2D velocity distribution in open-channel flow.pdf (395.7Kb)
    Date
    2011-11-21
    Author
    Fiorentino, Mauro
    Fontana, Nicola
    Marini, Gustavo
    De Martino, Giuseppe
    Singh, Vijay P.
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    Abstract
    In this paper, considering time-averaged velocity as a random variable, two-dimensional (2D) velocity distributions in open-channel flow have been derived based on the Shannon entropy concept and the principle of maximum entropy. The velocity distributions so derived have limited practical use, since they contain too many parameters that need to be experimentally calibrated and hence are not convenient to apply. This work develops a new entropy-based approach for deriving a 2D velocity distribution in open-channel flow, thereby investigating a rectangular geometric domain. The derived distribution is parsimonious, and the values determined using the proposed distribution are found to be in good agreement with the experimentally-measured velocity values.
    DOI
    10.1080/00221686.2011.635889
    Subject
    Entropy
    Flow Measurement
    Open-channel flow
    Shannon entropy
    streamflow
    velocity distribution
    Department
    Biological and Agricultural Engineering (College of Agriculture and Life Sciences)
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    Citation
    Fiorentino, Mauro; Fontana, Nicola; Marini, Gustavo; De Martino, Giuseppe; Singh, Vijay P. (2011). Entropy approach for 2D velocity distribution in open-channel flow. Available electronically from https : / /hdl .handle .net /1969 .1 /164663.

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