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Physical Modeling of Unsteady Turbulence in Breaking Tidal Bores [PDF]
Journal of Hydraulic Engineering, 2012 A tidal bore is an unsteady flow motion generated by the rapid water level rise at the river mouth during the early flood tide under macrotidal and appropriate bathymetric conditions. This paper presents a study that physically investigates the turbulent properties of tidal bores. Results from some experimental measurements of free-surface fluctuations
Hubert Chanson
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, 2013 A tidal bore is a series of waves propagating upstream in the river mouth as the tide turns to rising. It forms during the spring tide conditions with a tidal range in excess of 4.5–6 m in a narrow funneled estuary with low freshwater levels. The presence of a tidal bore indicates some macrotidal conditions associated with an asymmetrical tide. Two key
Chanson, Hubert, Hubert Chanson
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Unsteady turbulence in tidal bores: Ensemble-average or VITA? [PDF]
, 2010 A tidal bore is a series of waves propagating upstream as the tidal flow turns to rising in a macro-tidal estuary with a funnel shape. The tidal bore front is a hydrodynamic discontinuity. In this study, the characteristics of breaking tidal bores were investigated physically under controlled flow conditions.
Chanson, Hubert, Docherty, Nicholas
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2D numerical contributions for the study of non-cohesive sediment transport beneath tidal bores [PDF]
Comptes Rendus - Mecanique, 2019 International audience2D numerical simulations of tidal bores were obtained using the OpenFOAM CFD software to solve the Navier--Stokes equations by means of the Finite Volume Method by applying a LES turbulence model.
Germain Rousseaux +2 more
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Physically based simulation of tidal bore
2009 11th IEEE International Conference on Computer-Aided Design and Computer Graphics, 2009Tidal bore is a peculiar nature phenomenon which is caused by the lunar and solar gravitation. Based on the physical characters of tidal bores, in this paper we propose a novel method to model and render this phenomenon, especially the tidal waves in Qiantang estuary.
Changbo Wang +5 more
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Formation and Propagation of Tidal Bore
Journal of Waterway, Port, Coastal, and Ocean Engineering, 1995In a tidal river, the peak value of the discharge occurs earlier than the peak value of the tidal elevation. The high water level of a tidal wave moves faster than the low water level, and as a result the slope of the wave-surface profile, in the direction of propagation, increases from high water to low and decreases from low water to high.
Nitish C. Mazumder, Somnath Bose
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Undular tidal bores: effect of channel constriction and bridge piers [PDF]
Environmental Fluid Mechanics, 2010 A tidal bore may occur in a macro-tidal estuary when the tidal range exceeds 4.5-6 m and the estuary bathymetry amplifies the tidal wave. Its upstream propagation induces a strong mixing of the estuarine waters. The propagation of undular tidal bores was
Hubert Chanson
exaly +2 more sources
2019
A tidal bore is perhaps the most spectacular tidal phenomenon that can be readily observed. When a large tide enters a shallow, funnel-shaped estuary with a gently sloping bottom, its waveform is distorted and this can lead to an impressive rolling ‘wall of water’, travelling upriver.
David George Bowers, Emyr Martyn Roberts
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A tidal bore is perhaps the most spectacular tidal phenomenon that can be readily observed. When a large tide enters a shallow, funnel-shaped estuary with a gently sloping bottom, its waveform is distorted and this can lead to an impressive rolling ‘wall of water’, travelling upriver.
David George Bowers, Emyr Martyn Roberts
openaire +1 more source