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B4. Capillary Effects on Groundwater Waves in Unconfined Coastal Aquifers

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dc.contributor.authorKong, Jun
dc.contributor.authorShen, Cheng-Ji
dc.contributor.authorXin, Pei
dc.contributor.authorSong, Zhi-Yao
dc.contributor.authorLi, Ling
dc.contributor.authorBarry, D.A.
dc.contributor.authorJeng, D.-S.
dc.contributor.authorLockington, D. A.
dc.contributor.authorStagnitti, F.
dc.contributor.authorParlange, J.-Y.
dc.date.accessioned2012-07-20T16:41:17Z
dc.date.available2012-07-20T16:41:17Z
dc.date.issued2012-05
dc.descriptionOnce downloaded, these high definition QuickTime videos may be played using a computer video player with H.264 codec, 1280x720 pixels, millions of colors, AAC audio at 44100Hz and 29.97 frames per second. The data rate is 5Mbps. File sizes are on the order of 600-900 MB. (Other formats may be added later.) Free QuickTime players for Macintosh and Window computers may be located using a Google search on QuickTime. The DVD was produced by J. Robert Cooke.en_US
dc.description.abstractVarious types of Boussinesq model exist, including those that account for finite-depth aquifers and capillary effects. Such models are used to simulate propagation of groundwater waves (watertable fluctuations) due to, for example, tides. However, discrepancies remain between experimental data and theoretical results. We proposed a Boussinesq-type model that (i) accounts for combined saturated-unsaturated zone flow and (ii) considers both horizontal and vertical flow. The unsaturated zone flow was modeled using Gardner’s hydraulic functions. The model, first solved numerically, provided predictions that improved agreement with experimental data on the propagation of tidal signals in a coastal aquifer. An approximate analytical solution to the model was also derived. The analytical approximation shows that the unsaturated zone’s storage capacity permits watertable fluctuations to propagate more readily than predicted by previous models. This occurs because the exchange of water with the capillary fringe is minimal during the passage of groundwater table fluctuations. The propagation characteristics of the groundwater waves predicted by the new analytical solution were examined in detail with respect to amplitude damping, phase shift and over-height of the fluctuating watertable.en_US
dc.description.viewer1_rnbdjbuaen_US
dc.identifier.urihttps://hdl.handle.net/1813/29556
dc.publisherInternet-First University Pressen_US
dc.subjectCapillarityen_US
dc.subjectgroundwater waveen_US
dc.subjectcapping effecten_US
dc.subjectnon-hydrostatic approximationen_US
dc.subjectperturbation solutionsen_US
dc.subjectatmospheric turbulenceen_US
dc.titleB4. Capillary Effects on Groundwater Waves in Unconfined Coastal Aquifersen_US
dc.typevideo/moving imageen_US

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