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Publications associées (49)

Spring-neap tide-induced beach water table fluctuations in a sloping coastal aquifer

Predictions of water table fluctuations in coastal aquifers are needed for numerous coastal and water resources engineering problems. Most previous investigations have been based on the Boussinesq equation for the case of a vertical beach. In this note an ...

2005

A new analytical solution for water table fluctuations in coastal aquifers with sloping beaches

David Andrew Barry

The Boussinesq equation appears as the zeroth-order term in the shallow water flow expansion of the non-linear equation describing the flow of fluid in an unconfined aquifer. One-dimensional models based on the Boussinesq equation have been used to analyse ...

2003

BeachWin: Modelling groundwater effects on swash sediment transport and beach profile changes

David Andrew Barry

Field and laboratory observations have shown that a relatively low beach groundwater table enhances beach accretion. These observations have led to the beach dewatering technique (artificially lowering the beach water table) for combating beach erosion. He ...

2002

Wave-induced beach groundwater flow

David Andrew Barry

Wave-induced beach groundwater flow has been linked to sediment transport in the near-shore zone and chemical transfer from the aquifer to the ocean. The flow dynamics, however, are not well-understood. This paper presents a numerical study of the instanta ...

2000

Beach water table fluctuations due to spring-neap tides: Moving boundary effects

David Andrew Barry

Tidal water table fluctuations in a coastal aquifer are driven by tides on a moving boundary that varies with the beach slope. One-dimensional models based on the Boussinesq equation are often used to analyse tidal signals in coastal aquifers. The moving b ...

2000

Alluvionnement des retenues par courants de turbidité

Giovanni De Cesare

Reservoir sedimentation by turbidity currents All lakes created on natural rivers are subjected to reservoir sedimentation. The construction of a dam significantly modifies the flow conditions of natural streams inside and downstream of an artificial lake. ...

EPFL1998

Beach water table fluctuations due to wave run-up: Capillarity effects

David Andrew Barry

High-frequency beach water table fluctuations due to wave run-up and run-down have been observed in the field [Waddell, 1976]. Such fluctuations affect the infiltration/exfiltration process across the beach face and the interstitial oxygenation process in ...

1997

Numerical modelling of tide-induced beach water table fluctuations

David Andrew Barry

Field studies have shown that the elevation of the beach groundwater table varies with the tide and such variations affect significantly beach erosion or accretion. In this paper, we present a BEM (Boundary Element Method) model for simulating the tidal fl ...

1997

Modeling coastal ground-water response to beach dewatering

David Andrew Barry

There has been renewed interest in the use of beach dewatering as a technique to combat beach erosion. Although several test and prototype installations have been undertaken worldwide, no guidelines are available to aid the engineering design of such proje ...

1996

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