Results 1 to 10 of about 22,714,121 (232)

A Mixed Finite Volume Element Method for Time-Fractional Damping Beam Vibration Problem [PDF]

open access: yesFractal and Fractional, 2022
In this paper, the transverse vibration of a fractional viscoelastic beam is studied based on the fractional calculus, and the corresponding scheme of a viscoelastic beam is established by using the mixed finite volume element method.
Tongxin Wang   +3 more
doaj   +4 more sources

Superconvergence for Control‐Volume Mixed Finite Element Methods on Rectangular Grids [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2007
We consider control‐volume mixed finite element methods for the approximation of second‐order elliptic problems on rectangular grids. These methods associate control volumes (covolumes) with the vector variable as well as the scalar, obtaining local algebraic representation of the vector equation (e.g., Darcy’s law) as well as the scalar equation (e.g.,
Thomas F. Russell   +2 more
openaire   +4 more sources

A robust upwind mixed hybrid finite element method for transport in variably saturated porous media [PDF]

open access: yesHydrology and Earth System Sciences, 2022
The mixed finite element (MFE) method is well adapted for the simulation of fluid flow in heterogeneous porous media. However, when employed for the transport equation, it can generate solutions with strong unphysical oscillations because of the ...
A. Younes, H. Hoteit, R. Helmig, M. Fahs
doaj   +1 more source

Numerical aspects of computational homogenization [PDF]

open access: yesComputer Methods in Materials Science, 2013
Computational homogenization enables replacement of a heterogeneous domain by an equivalent body with effective material parameters. Approach that we use is based on two-scale micro/macro analysis.
Marta Serafin, Witold Cecot
doaj   +1 more source

Modeling and simulation of hybrid Casson nanofluid mixed convection in a partly heated trapezoidal enclosure

open access: yesInternational Journal of Thermofluids, 2022
The current article aimed to model and analyze hybrid Casson nanofluid mixed convection in the partly heated enclosure using the finite element method. In this model, Al203−Cu hybrid nanofluid is considered. The computations are carried out for a variety
Mohammed Hirpho, Wubshet Ibrahim
doaj   +1 more source

Connection between finite volume and mixed finite element methods [PDF]

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Baranger, Jacques   +2 more
openaire   +2 more sources

Prediction of Elastic Properties Using Micromechanics of Polypropylene Composites Mixed with Ultrahigh-Molecular-Weight Polyethylene Fibers

open access: yesMolecules, 2022
In this study, we calculated the elastic properties of polypropylene composites mixed with ultrahigh-molecular-weight polyethylene (UHMWPE) fibers. We applied micromechanics models that use numerical analysis, conducted finite element analysis using the ...
Jong-Hwan Yun, Yu-Jae Jeon, Min-Soo Kang
doaj   +1 more source

Comparison of different numerical methods for calculating stress intensity factors in analysis of fractured structures [PDF]

open access: yesNumerical Methods in Civil Engineering, 2018
In this research, an efficient Galerkin Finite Volume Method (GFVM) along with the h–refinement adaptive process and post–processing error estimation analysis is presented for fracture analysis.
H. Rabbani-Zadeh   +2 more
doaj   +1 more source

Research on the thermo-hydraulic response characteristics of pore-fissure media using mixed finite volume method

open access: yesCase Studies in Thermal Engineering, 2022
After lengthy diagenesis and tectonic movement, a rock mass inevitably develops many pores and micro-fissures. A numerical simulation method was employed to study the thermal response characteristics of the rock mass under temperature seepage coupling by
Hongdan Yu   +4 more
doaj   +1 more source

Law of Nuclide Migration in Clayey Rocks considering Diffusion and Fluid Transport

open access: yesFrontiers in Earth Science, 2022
A core concern in the research on deep geological disposal of high-level radioactive waste is the migration of radionuclides in geological bodies. Most studies on radionuclide migration consider the role of only the rock fissures without incorporating ...
Hongdan Yu   +6 more
doaj   +1 more source

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