Results 1 to 10 of about 691,938 (340)

Effective velocity boundary condition at a mixed slip surface [PDF]

open access: green, 2007
This paper studies the nature of the effective velocity boundary conditions for liquid flow over a plane boundary on which small free-slip islands are randomly distributed.
Mauro Sbragaglia, Andréa Prosperetti
openalex   +6 more sources

Boltzmann equation with mixed boundary condition [PDF]

open access: greenSIAM Journal on Mathematical Analysis
Comment: 32 pages.
Hongxu Chen, Renjun Duan
openalex   +4 more sources

Mixed global anomalies and boundary conformal field theories

open access: yesJournal of High Energy Physics, 2018
We consider the relation between mixed global gauge gravitational anomalies and boundary conformal field theory in WZW models for simple Lie groups. The discrete symmetries of consideration are the centers of the simple Lie groups.
Tokiro Numasawa, Satoshi Yamaguch
doaj   +3 more sources

Numerical algorithm for solving parabolic identification problem with mixed boundary condition [PDF]

open access: yesE-Journal of Analysis and Applied Mathematics, 2023
A source identification problem for a parabolic equation with mixed boundary condition is studied. Stability estimates for the solution of identification problem with mixed boundary conditions are obtained.
Charyyar Ashyralyyev   +1 more
doaj   +1 more source

Homogenization of a mixed boundary condition [PDF]

open access: yesApplicable Analysis, 2022
We study the asymptotic behavior of the periodically mixed boundary value problem. The Dirichlet and Neumann boundary conditions are non- homogeneous and periodically mixed with small period ε. Using asymptotic analysis with respect to ε≪1, we derive an asymptotic approximation that has boundary condition of the Robin type.
Marušić-Paloka, Eduard, Pažanin, Igor
openaire   +2 more sources

On a method for approximate solution of a mixed boundary value problem for an elliptic equation

open access: yesЖурнал Средневолжского математического общества, 2021
A mixed boundary value problem for an elliptic equation of divergent type with variable coefficients is considered. It is assumed that the integration region is a rectangle, and the boundary of the integration region is the union of two disjoint pieces ...
Fairuzov Mahmut E., Lubyshev Fedor V.
doaj   +1 more source

Advanced Numerical Methods for Graphene Simulation with Equivalent Boundary Conditions: A Review

open access: yesPhotonics, 2023
Since the discovery of graphene, due to its excellent optical, thermal, mechanical and electrical properties, it has a broad application prospect in energy, materials, biomedicine, electromagnetism and other fields.
Yansheng Gong, Na Liu
doaj   +1 more source

Computational thermal conductivity in polyurethane mixed cell foam: Numerical boundary effects and hybrid model

open access: yesMaterials Science for Energy Technologies, 2023
The effective thermal conductivity is the most useful characteristic property to distinguish between two or more insulation materials. It is always the same by using different boundary conditions or different representative elementary volume sizes.
C. Hermama   +3 more
doaj   +1 more source

The effect of a new two-point nonlocal condition on the eigenvalue problem of the difference scheme for an elliptic partial differential equation

open access: yesAlexandria Engineering Journal, 2022
In this paper, a new form of two-point nonlocal boundary conditions is presented. This condition generalizes a Dirichlet condition at one boundary and a mixed condition at the other one.
S.M. Helal, A. Elmekawy
doaj   +1 more source

FFT‐based homogenization with mixed uniform boundary conditions [PDF]

open access: yesInternational Journal for Numerical Methods in Engineering, 2021
AbstractThe fast Fourier transform (FFT) based homogenization method of Moulinec and Suquet has been established as a fast, accurate, and robust tool for periodic homogenization in solid mechanics. In a finite element context, Pahr and Zysset have introduced nonperiodic boundary conditions (PMUBC) for homogenization problems.
Hannes Grimm‐Strele, Matthias Kabel
openaire   +2 more sources

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