Finite Element Modeling of Free Surface Flow in Variable Porosity Media
نویسندگان
چکیده
منابع مشابه
Finite Element Modeling of Free Surface Flow in Variable Porosity Media
The aim of the present work is to present an overview of some numerical procedures for the simulation of free surface ows within a porous structure. A particular algorithm developed by the authors for solving this type of problems is presented. A modi ed form of the classical Navier Stokes equations is proposed, with the principal aim of simulating in a uni ed way the seepage ow inside rock lll...
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An adaptive finite element algorithm is described for the stable solution of three-dimensional free-surface-flow problems based primarily on the use of node movement. The algorithm also includes a discrete remeshing procedure which enhances its accuracy and robustness. The spatial discretisation allows an isoparametric piecewise-quadratic approximation of the domain geometry for accurate resolu...
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Considering the fact that a large volume of iron reserve in the Sechahoon Iron Mine in Yazd Province has located under the water table, it is necessary to conduct a comprehensive study on water flow within the pit and its surroundings. The conceptual model of the aquifer was created using surface and underground geological information compared with water table data of the area of interest. In t...
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The equations of fluids in porous media are very useful in designing the rockfill and diversion dams, gabions, breakwaters and ground water reserves. Researches have been showed that the Forchheimer equation is not sufficient for the analysis of hydraulic behavior of free-surface radial flows; because, in these flows, in addition to the hydraulic gradient and velocity, the variable of radius is...
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A new approach based on the use of the Newton and level set methods allows to follow the motion of interfaces with surface tension immersed in an incompressible Newtonian fluid. Our method features the use of a high order fully implicit time integration scheme that circumvents the stability issues related to the explicit discretization of the capillary force when capillary effects dominate. A s...
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ژورنال
عنوان ژورنال: Archives of Computational Methods in Engineering
سال: 2014
ISSN: 1134-3060,1886-1784
DOI: 10.1007/s11831-014-9140-x