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Non-Singular Burton–Miller Boundary Element Method for Acoustics

open access: yesFluids, 2023
The problem of non-unique solutions at fictitious frequencies that can appear in the boundary element method for external acoustic phenomena described by the Helmholtz equation is studied.
Qiang Sun, Evert Klaseboer
doaj   +2 more sources

A Simple, Accurate and Semi-Analytical Meshless Method for Solving Laplace and Helmholtz Equations in Complex Two-Dimensional Geometries

open access: yesMathematics, 2022
A localized virtual boundary element–meshless collocation method (LVBE-MCM) is proposed to solve Laplace and Helmholtz equations in complex two-dimensional (2D) geometries.
Xingxing Yue   +3 more
doaj   +1 more source

A Numerical Study for the Dirichlet Problem of the Helmholtz Equation

open access: yesMathematics, 2021
In this paper, an effective numerical method for the Dirichlet problem connected with the Helmholtz equation is proposed. We choose a single-layer potential approach to obtain the boundary integral equation with the density function, and then we deal ...
Yao Sun, Shijie Hao
doaj   +1 more source

A boundary integral equation method for the fluid-solid interaction problem

open access: yesCommunications in Analysis and Mechanics, 2023
In this paper, a boundary integral equation method is proposed for the fluid-solid interaction scattering problem, and a high-precision numerical method is developed.
Yao Sun, Pan Wang, Xinru Lu , Bo Chen
doaj   +1 more source

The use of dual reciprocity method for 2D laminar viscous flow [PDF]

open access: yesMATEC Web of Conferences, 2020
The paper presents the use of the dual reciprocity multidomain singular boundary method (SBMDR) for the solution of the laminar viscous flow problem described by Navier-Stokes equations.
Mužík Juraj
doaj   +1 more source

SOLUTION OF A TWO-DIMENSIONAL BOUNDARY VALUE PROBLEM OF HEAT CONDUCTION IN A DEGENERATING DOMAIN

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2021
In the paper we consider the boundary value problem of heat conduction outside the cone, i.e. in the domain degenerating into a point at the initial moment of time.
M. I. Ramazanov   +1 more
doaj   +1 more source

A Novel Neuroevolutionary Paradigm for Solving Strongly Nonlinear Singular Boundary Value Problems in Physiology

open access: yesIEEE Access, 2022
In the present research work, we designed a hybrid stochastic numerical solver to investigate nonlinear singular two-point boundary value problems with Neumann and Robin boundary conditions arising in various physical models.
Jiayi Guo   +3 more
doaj   +1 more source

Transient Dynamic Response Analysis of Two-Dimensional Saturated Soil with Singular Boundary Method

open access: yesMathematics, 2022
In this paper, the singular boundary method (SBM) in conjunction with the exponential window method (EWM) is firstly extended to simulate the transient dynamic response of two-dimensional saturated soil.
Dongdong Liu   +5 more
doaj   +1 more source

Pseudo Mapping Method for Singular Integral of Curved Panels [PDF]

open access: yes한국해양공학회지, 2019
A numerical method is suggested for evaluating the singular integral of curved panels in the higher-order boundary element method. Two-step mapping procedures that are significantly related to the physical properties of singular behaviors were developed ...
Ik-Jae Lee, Sun-Hong Kwon
doaj   +1 more source

A Novel Coupled Meshless Model for Simulation of Acoustic Wave Propagation in Infinite Domain Containing Multiple Heterogeneous Media

open access: yesMathematics, 2023
This study presents a novel coupled meshless model for simulating acoustic wave propagation in heterogeneous media, based on the singular boundary method (SBM) and Kansa’s method (KS).
Cheng Chi, Fajie Wang, Lin Qiu
doaj   +1 more source

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