Three-dimensional Finite-volume ELLAM Implementation PDF Download
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Author: C. I. Heberton
Publisher:
ISBN:
Category : Groundwater flow
Languages : en
Pages :
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Author: C. I. Heberton
Publisher:
ISBN:
Category : Groundwater flow
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 76
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Author: Davoud Ebrahimi
Publisher:
ISBN:
Category : Continuum mechanics
Languages : en
Pages : 134
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Book Description
Based on the mixture theory formulation of a fluid saturated porous solid subjected to dynamic large strain deformation, a 3D finite element implementation is presented. Under standard mixture theory assumptions, describing motion of the fluid phase relative to the solid phase and following solid phase motion, field equations in the u-p form are derived by applying balance of mass and balance of momentum of the continuum mixture. Solid and fluid volume fractions are used as evolving state parameters through the finite deformation analysis. A compressible neo-Hookean hyperelastic constitutive model with a Kelvin solid viscous enhancement for the solid phase is assumed, along with a generalized form of Darcy's law for the fluid phase. In turn, the governing nonlinear coupled partial differential equations are spatially discretized using a Bubnov-Galerkin method. An unconditionally stable finite differencing procedure is used for the time domain numerical integration. For efficient numerical solution of the 3D nonlinear time dependent coupled formulation which includes both geometric and material nonlinearities, a full consistent tangent matrix of the system of equations has been derived. A mixed hexahedral finite element, quadratic in solid displacement and linear in fluid pore pressure, and the associated consistent tangent matrix are implemented in a C++ finite element code, Tahoe. The implementation is verified with available 1D and 2D benchmark problems. New numerical solutions for 3D large strain dynamic behavior of saturated porous media will be presented. The computational efficiency of the implemented formulation in achieving quadratic convergence is illustrated by means of several numerical examples.
Author: Frederick G. Harmon
Publisher:
ISBN:
Category : Electromagnetism
Languages : en
Pages : 306
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Book Description
Author: John H. Cushman
Publisher: CRC Press
ISBN: 1315354535
Category : Science
Languages : en
Pages : 1726
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Book Description
This new edition adds several new chapters and is thoroughly updated to include data on new topics such as hydraulic fracturing, CO2 sequestration, sustainable groundwater management, and more. Providing a complete treatment of the theory and practice of groundwater engineering, this new handbook also presents a current and detailed review of how to model the flow of water and the transport of contaminants both in the unsaturated and saturated zones, covers the protection of groundwater, and the remediation of contaminated groundwater.
Author: Rolf Radespiel
Publisher:
ISBN:
Category :
Languages : de
Pages : 40
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Author: Rolf Radespiel
Publisher:
ISBN:
Category :
Languages : en
Pages : 39
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Author: M. Manna
Publisher:
ISBN:
Category : Lagrange equations
Languages : en
Pages : 116
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Author: P. van Beek
Publisher:
ISBN:
Category :
Languages : en
Pages : 80
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Author: P. C. W. van Beek
Publisher:
ISBN:
Category :
Languages : en
Pages : 80
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