A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental study of bore-driven swash hydrodynamics on permeable rough slopes
Abstract A detailed experimental investigation of the hydrodynamics of large-scale, bore-driven swash on steep permeable, rough beaches is described. The experiments were carried out on two permeable, but fixed rough beaches, made of 1.3mm sand and 8.4mm gravel, respectively. The large-scale discrete swash event was produced by the collapse of a dam break-generated bore on the beach. Simultaneous depths and velocities were measured using laser-induced fluorescence (LIF), and particle image velocimetry (PIV), respectively. Depth time series, instantaneous velocity profiles, depth-averaged velocities, instantaneous turbulent kinetic energy profiles, depth-averaged turbulent kinetic energy, turbulent shear stress profiles and bed shear stresses are presented for several cross-shore measurement locations in the swash. The effect of beach permeability is investigated by comparing new experimental results with previously published data for impermeable beaches with identical surface roughness (Kikkert et al., 2012). The detailed data can be used to test and develop advanced numerical models for bore-driven swash on rough permeable beaches.
Highlights Detailed hydrodynamics of bore-driven swash on permeable, but fixed rough beaches Large-scale laboratory experiments measuring simultaneous depths and velocities Shows effects of permeability on bulk flow and turbulence properties Yields measures of time-varying bed shear stress across the swash zone
Experimental study of bore-driven swash hydrodynamics on permeable rough slopes
Abstract A detailed experimental investigation of the hydrodynamics of large-scale, bore-driven swash on steep permeable, rough beaches is described. The experiments were carried out on two permeable, but fixed rough beaches, made of 1.3mm sand and 8.4mm gravel, respectively. The large-scale discrete swash event was produced by the collapse of a dam break-generated bore on the beach. Simultaneous depths and velocities were measured using laser-induced fluorescence (LIF), and particle image velocimetry (PIV), respectively. Depth time series, instantaneous velocity profiles, depth-averaged velocities, instantaneous turbulent kinetic energy profiles, depth-averaged turbulent kinetic energy, turbulent shear stress profiles and bed shear stresses are presented for several cross-shore measurement locations in the swash. The effect of beach permeability is investigated by comparing new experimental results with previously published data for impermeable beaches with identical surface roughness (Kikkert et al., 2012). The detailed data can be used to test and develop advanced numerical models for bore-driven swash on rough permeable beaches.
Highlights Detailed hydrodynamics of bore-driven swash on permeable, but fixed rough beaches Large-scale laboratory experiments measuring simultaneous depths and velocities Shows effects of permeability on bulk flow and turbulence properties Yields measures of time-varying bed shear stress across the swash zone
Experimental study of bore-driven swash hydrodynamics on permeable rough slopes
Kikkert, G.A. (author) / Pokrajac, D. (author) / O'Donoghue, T. (author) / Steenhauer, K. (author)
Coastal Engineering ; 79 ; 42-56
2013-04-22
15 pages
Article (Journal)
Electronic Resource
English
Experimental study of bore-driven swash hydrodynamics on permeable rough slopes
| Online Contents | 2013
Experimental study of bore-driven swash hydrodynamics on permeable rough slopes
| British Library Online Contents | 2013
Experimental study of bore-driven swash hydrodynamics on impermeable rough slopes
| British Library Online Contents | 2012
Experimental study of bore-driven swash hydrodynamics on impermeable rough slopes
| Online Contents | 2012