Results 21 to 30 of about 63,372 (284)

Boundary-integral method for poloidal axisymmetric AC magnetic fields [PDF]

open access: yes, 2006
This paper presents a boundary-integral equation (BIE) method for the calculation of poloidal axisymmetric magnetic fields applicable in a wide range of ac frequencies.
Gerbeth, G., Priede, J.
core   +2 more sources

Solvo-osmotic flow in electrolytic mixtures [PDF]

open access: yes, 2017
We show that an electric field parallel to an electrically neutral surface can generate flow of electrolytic mixtures in small channels. We term this solvo-osmotic flow, since the flow is induced by the asymmetric preferential solvation of ions at the ...
Samin, Sela, van Roij, René
core   +2 more sources

Modified Finite Difference Schemes on Uniform Grids for Simulations of the Helmholtz Equation at Any Wave Number

open access: yesJournal of Applied Mathematics, 2014
We construct modified forward, backward, and central finite difference schemes, specifically for the Helmholtz equation, by using the Bloch wave property.
Hafiz Abdul Wajid   +3 more
doaj   +1 more source

Convergence of the High-Accuracy Algorithm for Solving the Dirichlet Problem of the Modified Helmholtz Equation

open access: yesComplexity, 2020
In this paper, we derive the convergence for the high-accuracy algorithm in solving the Dirichlet problem of the modified Helmholtz equation. By the boundary element method, we transform the system to be a boundary integral equation.
Hu Li, Guang Zeng
doaj   +1 more source

Exploring the Origin of Maximum Entropy States Relevant to Resonant Modes in Modern Chladni Plates

open access: yesEntropy, 2022
The resonant modes generated from the modern Chladni experiment are systematically confirmed to intimately correspond to the maximum entropy states obtained from the inhomogeneous Helmholtz equation for the square and equilateral triangle plates.
Yu-Hsin Shu   +5 more
doaj   +1 more source

Boundary Element and Finite Element Coupling for Aeroacoustics Simulations [PDF]

open access: yes, 2014
We consider the scattering of acoustic perturbations in a presence of a flow. We suppose that the space can be split into a zone where the flow is uniform and a zone where the flow is potential.
Balin, Nolwenn   +5 more
core   +7 more sources

Landweber iterative regularization method for reconstructing the unknown source of the modified Helmholtz equation

open access: yesAIMS Mathematics, 2021
This paper considers the inverse problem of determining an unknown source which depends only one spatial variable on modified Helmholtz equation.
Dun-Gang Li   +4 more
doaj   +1 more source

Nodally exact Ritz discretizations of 1D diffusion–absorption and Helmholtz equations by variational FIC and modified equation methods [PDF]

open access: yes, 2007
The final publication is available at Springer via http://dx.doi.org/10.1007/s00466-005-0011-zThis article presents the first application of the Finite Calculus (FIC) in a Ritz-FEM variational framework.
Felippa, Carlos   +1 more
core   +2 more sources

Formulation of a T-Matrix Approach for a Piecewise-Homogeneous Anisotropic Medium Excited by a Spherical Sound Wave

open access: yesMathematics, 2023
A piecewise-homogeneous medium, consisting of anisotropic layers, is excited by a primary spherical sound wave due to a point source lying in the exterior of the medium or in one of its layers.
Andreas Kalogeropoulos   +1 more
doaj   +1 more source

Modified boundary integral formulations for the Helmholtz equation

open access: yesJournal of Mathematical Analysis and Applications, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Engleder, S., Steinbach, O.
openaire   +1 more source

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