Part I presents the statistical theory of turbulence, and Part 2 the coherent structures in open-channel flows and boundary layers. The book is intended for advanced students and researchers in hydraulic research, fluid mechanics, environmental sciences and related disciplines. References Index.

Turbulence in open-channel flows

Hydrodynamic forces induced by a solitary wave interacting with a submerged square barrier: Physical tests and δ-LES-SPH simulations

Over the last two decades, interest in the free-surface behaviour of gravity-driven shallow turbulent flows has increased considerably. It is believed that observation of free-surface behaviour can...

https://www.tandfonline.com/doi/pdf/10.1080/00221686.2020.1870007

Free-surface behaviour of shallow turbulent flows

Wave-vegetation interaction using Improved Meshless Local Petrov Galerkin method

In this study, a three-dimensional (3D) numerical model based on the smoothed particle hydrodynamics (SPH) approach was developed to simulate the near-shore current flows over a rough topographic surface in the coastal area, where the flows are shallow and demonstrate strong turbulent characteristics. The numerical program is based on the open-source code SPHysics (http://www.sphysics.org), and two major improvements are made to treat the turbulence and rough boundary effects: A modified sub-particle-scale (SPS) eddy viscosity model is developed to address the turbulence transfer of flows, and a drag force equation is included in the momentum equations to account for the influence of roughness element on the bed and lateral boundaries. The computed results of flow velocity, shear stress, and free surface characteristics are compared with the laboratory measurements for a variety of test conditions. It has shown that the present SPH model can accurately simulate 3D-free surface near-shore current flows over a realistic topography with roughness.

/pdf/three-dimensional-smoothed-particle-hydrodynamics-modeling-2768aj4n.pdf

Three-dimensional smoothed particle hydrodynamics modeling of near-shore current flows over rough topographic surface

In this paper, the smoothed particle hydrodynamics method is used to simulate experimental shallow free surface turbulent flows over a rough bed made of regularly packed uniform spheres. The numeri...

https://www.tandfonline.com/doi/pdf/10.1080/00221686.2017.1410732

SPHysics simulation of laboratory shallow free surface turbulent flows over a rough bed

In this study, a fully 3D numerical model based on the Smoothed Particle Hydrodynamics (SPH) approach has been developed to simulate turbulent open channel flows over a fixed rough bed. The model f...

/pdf/3d-sph-simulation-of-dynamic-water-surface-and-its-c6oefuvrzq.pdf

Eslam Gabreil

Papers

SPHysics simulation of laboratory shallow free surface turbulent flows over a rough bed

Three-dimensional smoothed particle hydrodynamics modeling of near-shore current flows over rough topographic surface

3D SPH Simulation of Dynamic Water Surface and Its Interaction with Underlying Flow Structure for Turbulent Open Channel Flows Over Rough Beds

Simulation of the free surface and flow velocity in depth-limited lows over rough beds