Non linear shallow water modelling of bore-driven swash: Description of the bottom boundary layer |
| |
Authors: | Riccardo Briganti Nicholas Dodd Dubravka Pokrajac Tom O'Donoghue |
| |
Affiliation: | 1. Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK;2. Department of Engineering, King''s College, University of Aberdeen, Aberdeen AB24 3UE, UK |
| |
Abstract: | The paper presents a simple approach to estimate the bottom shear stress in the swash zone by coupling the Non Linear Shallow Water Equations with the momentum integral equation for the bottom boundary layer. The approach allows not only the computation of the frictional dissipation term in the equations but also to have an insight into the flow structure in the water column during a swash event. The numerical results have been compared with a new set of experiments involving a single dam-break generated swash event. Three different grain sizes, ranging from coarse sand to gravel, have been tested in the laboratory. |
| |
Keywords: | Bore-driven swash Shock capturing schemes Bottom boundary layer Bottom shear stress Momentum integral method |
本文献已被 ScienceDirect 等数据库收录! |