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  • A numerical study of fluid flow in a vertical slot fishway with the smoothed particle hydrodynamics method [Elektronski vir]
    Novak, Gorazd, gradbeništvo/hidrotehnika, 1978- ...
    Fishways have a great ecological importance as they help mitigate the interruptions of fish migration routes. In the present work, the novel DualSPHysics v4.4 solver, based on the smoothed particle ... hydrodynamics method (SPH), has been applied to perform three-dimensional (3-D) simulations of water flow in a vertical slot fishway (VSF). The model has been successfully calibrated against published field data of flow velocities that were measured with acoustic Doppler velocity probes. A state-of-the-art algorithm for the treatment of open boundary conditions using buffer layers has been applied to accurately reproduce discharges, water elevations, and average velocity profiles (longitudinal and transverse velocities) within the observed pool of the VSF. Results herein indicate that DualSPHysics can be an accurate tool for modeling turbulent subcritical free surface flows similar to those that occur in VSF. A novel relation between the number of fluid particles and the artificial viscosity coefficient has been formulated with a simple logarithmic fit.
    Source: Water [Elektronski vir]. - ISSN 2073-4441 (Letn. 11, št. 9/1928, 2019, str. 1-23)
    Type of material - e-article ; adult, serious
    Publish date - 2019
    Language - english
    COBISS.SI-ID - 8876641

    Link(s):

    https://www.mdpi.com/2073-4441/11/9/1928
    Repository of the University of Ljubljana – RUL
    DOI

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