Partially saturated oscillatory flow under tidal conditions in homogeneous and layered soil columns (experiment and simulations) - Archive ouverte HAL Access content directly
Conference Papers Year : 2011

Partially saturated oscillatory flow under tidal conditions in homogeneous and layered soil columns (experiment and simulations)

Abstract

Surface/subsurface flow interactions concern a wide range of applications, from beach morphodynamics (swash zone), coastal aquifers (seawater intrusion and tidal effects), to harbour engineering and hydrology (e.g., man-made structures such as porous dykes and earth dams). The aim of this paper is to study numerically and experimentally the oscillatory flow in a sandy beach under tidal/low frequency forcing. In this short paper, we only describe the principle of the experiments, and then we focus on numerical simulations and analysis. For the numerical simulation, we use Richards's equation for variably saturated/unsaturated flow in a 1D porous column, with oscillatory pressure boundary conditions at the bottom of the column. Numerical simulations and analyses are conducted for the following cases: (1) homogeneous column, (2) heterogeneous 2-layer column (currently being extended to other heterogeneities).
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Dates and versions

hal-04087262 , version 1 (03-05-2023)

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Khalil Alastal, Rachid Ababou, Dominique Astruc. Partially saturated oscillatory flow under tidal conditions in homogeneous and layered soil columns (experiment and simulations). 2nd Coastal and Maritime Mediterranean Conference (CM2), Nov 2011, Tanger, Morocco. pp.113-118, ⟨10.5150/cmcm.2011.024⟩. ⟨hal-04087262⟩
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