Results 11 to 20 of about 23,409 (291)
A time-domain Runge-Kutta dual reciprocity boundary element method for scalar wave propagation problem [PDF]
Scientific ReportsThis paper presents a combined approach utilizing the dual reciprocity boundary element method (DRBEM) and the fourth-order Runge–Kutta method (RKM) to address acoustic radiation problems.
Fenglin Zhou +6 more
doaj +2 more sources
Arab Journal of Basic and Applied Sciences, 2020 In this paper we present the development of numerical methods for two problems in chemical engineering: adsorption of carbon dioxide into phenyl glycidyl ether and diffusion and reaction processes in a porous catalyst.
M. A. AL-Jawary, G. H. Rahdi, J. Ravnik
doaj +2 more sources
Solution of a two-dimensional parabolic model problem in a degenerate angular domain [PDF]
Қарағанды университетінің хабаршысы. Математика сериясы, 2023 In this paper, the boundary value problem of heat conduction in a domain was considered, boundary of which changes with time, as well as there is no the problem solution domain at the initial time, that is, it degenerates into a point.
M.I. Ramazanov +2 more
doaj +2 more sources
Time-Domain Boundary Integral Methods in Linear Thermoelasticity [PDF]
SIAM Journal on Mathematical Analysis, 2020 This paper is concerned with the application of time domain boundary integral methods(TDBIMs) to a non-stationary boundary value problem for the thermo-elasto-dynamic equations, based on the Lubich approach via the Laplace transform. Fundamental solutions of the transformed thermo-elasto-dynamic equations are constructed explicitly by the Hörmander ...
George C. Hsiao +1 more
openaire +4 more sources
A fractionally loaded boundary value problem two-dimensional in the spatial variable [PDF]
Қарағанды университетінің хабаршысы. Математика сериясы, 2023 In the paper, the boundary value problem for the loaded heat equation is solved, and the loaded term is represented as the Riemann-Liouville derivative with respect to the time variable. The domain of the unknown function is the cone.
M.T. Kosmakova +2 more
doaj +2 more sources
On a Method in Dynamic Elasticity Problems for Heterogeneous Wedge-Shaped Medium [PDF]
E3S Web of Conferences, 2021 The method of analysis of steady oscillations arising in the piecewise homogeneous wedge-shaped medium composed by two homogeneous elastic wedges with different mechanical and geometric characteristics is presented.
Berkovich Vyacheslav +1 more
doaj +1 more source
Automatic CHIEF Point Selection for Finite Element–Boundary Element Acoustic Backscattering
Acoustics, 2023 Computing the backscattering of harmonic acoustic waves from underwater elastic targets of arbitrary shapes is a challenging problem of considerable practical significance.
Petr Krysl, Ahmad T. Abawi
doaj +1 more source
Zhongguo Jianchuan Yanjiu, 2023 ObjectivesThis paper aims to study the free vibration characteristics of complicated shape plate coupled with fluid under elastic boundary conditions. MethodsTo this end, the rectangular domain enveloping the complicated shape plate domain is selected ...
Qingsheng LI +4 more
doaj +1 more source
SOLUTION OF A TWO-DIMENSIONAL BOUNDARY VALUE PROBLEM OF HEAT CONDUCTION IN A DEGENERATING DOMAIN
Вестник 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
Solution of the boundary value problem of heat conduction in a cone [PDF]
Opuscula Mathematica, 2022 In the paper we consider the boundary value problem of heat conduction in a non-cylindrical domain, which is an inverted cone, i.e. in the domain degenerating into a point at the initial moment of time.
Murat Ramazanov +2 more
doaj +1 more source