A numerical scheme for modeling tidal wetting and drying
نویسندگان
چکیده
منابع مشابه
A wetting and drying scheme for POM
In shallow-water models, wetting and drying (WAD) are determined by the total water depth D 1⁄4 0 for ‘dry’ and >0 for ‘wet’. Checks are applied to decide the fate of each cell during model integration. It is shown that with bottom friction values commonly used in coastal models, the shallow-water system may be cast into a Burger’s type equation for D. For flows dominated by D (i.e. jrDj jrH j,...
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The processes of wetting and drying have many important physical and biological impacts on shallow water systems. Inundation and dewatering effects on coastal mud flats and beaches occur on various time scales ranging from storm surge, periodic rise and fall of the tide, to infragravity wave motions. To correctly simulate these physical processes with a numerical model requires the capability o...
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A review of wetting and drying (WD) algorithms used by contemporary numerical models based on the shallow water equations is presented. The numerical models reviewed employ WD algorithms that fall into four general frameworks: (1) Specifying a thin film of fluid over the entire domain; (2) checking if an element or node is wet, dry or potentially one of the two, and subsequently adding or remov...
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A wetting and drying scheme (WDS) is developed to incorporate into a three-dimensional sigmacoordinate coastal ocean model (POM; Blumberg and Mellor, 1983) with proposing an extended logarithmic profile within and above bed boundary layers to accurately simulate 3D hydrodynamics in extremely shallow coastal seas. While the WDS is simplistically formulated, it can selectively retain the computat...
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A finite-volume method for the one-dimensional shallow-water equations including topographic source terms is presented. Exploiting an original idea by Leroux, the system of partial-differential equations is completed by a trivial equation for the bathymetry. By applying a change of variable, the system is given a celerity-speed formulation, and linearized. As a result, an approximate Riemann so...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 2011
ISSN: 0148-0227
DOI: 10.1029/2010jc006666