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Erschienen in:
Time-Averaged Hydrodynamic Equations for Mobile-Bed Conditions Kapitel lesen Erstes Kapitel lesen

2016 | OriginalPaper | Buchkapitel

Potential Application of Mesh-Free SPH Method in Turbulent River Flows

verfasst von : Ehsan Kazemi, Simon Tait, Songdong Shao, Andrew Nichols

Erschienen in: Hydrodynamic and Mass Transport at Freshwater Aquatic Interfaces

Verlag: Springer International Publishing

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Abstract

A comprehensive review has been completed on the simulation of turbulent flow over rough beds using mesh-free particle models. Based on the outcomes of this review, an improved Smoothed Particle Hydrodynamics (SPH) method has been developed for open channel flows over a rough bed, in which a mixing length model is used for modeling the 2D turbulence and a drag force equation is proposed for treating the boundary shear. The proposed model was applied to simulate a depth-limited open channel flow over a rough bed surface. The results of the velocity profile and shear stress distribution show a good agreement with the experimental data and existing analytical solutions. This work reveals that in order to correctly model turbulent open channel flow over a rough bed, the treatment of both flow turbulence and bed roughness effect is equally important.

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Vorheriges Kapitel Time-Averaged Hydrodynamic Equations for Mobile-Bed Conditions
Nächstes Kapitel Interaction Between Storm Water Conduit Flow and Overland Flow for Numerical Modelling of Urban Area Inundation
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Metadaten
Titel
Potential Application of Mesh-Free SPH Method in Turbulent River Flows
verfasst von
Ehsan Kazemi
Simon Tait
Songdong Shao
Andrew Nichols
Copyright-Jahr
2016
Buch
Hydrodynamic and Mass Transport at Freshwater Aquatic Interfaces

Print ISBN: 978-3-319-27749-3

Electronic ISBN: 978-3-319-27750-9

Copyright-Jahr: 2016

DOI
https://doi.org/10.1007/978-3-319-27750-9_2