Results 11 to 20 of about 90,096 (231)

Heat Transfer Enhancement in Unsteady MHD Natural Convective Flow of CNTs Oldroyd-B Nanofluid under Ramped Wall Velocity and Ramped Wall Temperature

open access: yesEntropy, 2020
This article analyzes heat transfer enhancement in incompressible time dependent magnetohydrodynamic (MHD) convective flow of Oldroyd-B nanofluid with carbon nanotubes (CNTs). Single wall carbon nanotubes (SWCNTs) and multi-wall carbon nanotubes (MWCNTs)
Talha Anwar   +3 more
doaj   +1 more source

Galerkin Finite Element Based Modeling of One Dimensional Packed Bed Reactor for Underground Coal Gasification (UCG) Process

open access: yesIEEE Access, 2020
Mathematical models of a complex physicochemical underground coal gasification process involve multidimensional non-linear partial differential equations (PDEs).
Qudsiya Irum   +3 more
doaj   +1 more source

Finite difference method and algebraic polynomial interpolation for numerically solving Poisson's equation over arbitrary domains

open access: yesAIP Advances, 2014
The finite difference method (FDM) based on Cartesian coordinate systems can be applied to numerical analyses over any complex domain. A complex domain is usually taken to mean that the geometry of an immersed body in a fluid is complex; here, it means ...
Tsugio Fukuchi
doaj   +1 more source

Discontinuous Galerkin method on reference domain

open access: yesComputer Assisted Methods in Engineering and Science, 2017
A reference domain is chosen to formulate numerical model using the discontinuous Galerkin with finite difference (DGFD) method. The differential problem, which is defined for the real domain, is transformed in a weak form to the reference domain.
Jan Jaśkowiec
doaj   +1 more source

Efficient computation of coherent multimode instabilities in lasers using a spectral approach

open access: yesNew Journal of Physics, 2023
Coherent multimode instabilities are responsible for several phenomena of recent interest in semiconductor lasers, such as the generation of frequency combs and ultrashort pulses.
Sara Kacmoli   +3 more
doaj   +1 more source

Finite difference on grids with nearly uniform cell area and line spacing for the wave equation on complex domains

open access: yesJournal of Computational and Applied Mathematics, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sebastian Acosta, Vianey Villamizar
openaire   +1 more source

On Parametric Gevrey Asymptotics for Singularly Perturbed Partial Differential Equations with Delays

open access: yesAbstract and Applied Analysis, 2013
We study a family of singularly perturbed -difference-differential equations in the complex domain. We provide sectorial holomorphic solutions in the perturbation parameter .
Alberto Lastra, Stéphane Malek
doaj   +1 more source

MedFDTD: A Parallel and Open-Source Cross-Platform Framework for Bioelectromagnetics Field Simulation

open access: yesIEEE Access, 2018
MedFDTD, a new parallel and open-source cross-platform framework for bioelectromagnetics research, has been developed by solving Maxwell's equations using the finite-difference time-domain method.
Wang Meng, Liu Qian
doaj   +1 more source

Three-Dimensional Transient Electromagnetic Numerical Simulation Using FDFD Based on Octree Grids

open access: yesIEEE Access, 2019
The transient electromagnetic method (TEM) has been widely used as a geophysical exploration method in recent years. When Maxwell's equations are discretized in the time domain by the direct solution method, the initial field is used as a substitute for ...
Hui Luan   +3 more
doaj   +1 more source

On a q—Analog of a Singularly Perturbed Problem of Irregular Type with Two Complex Time Variables

open access: yesMathematics, 2019
The analytic solutions of a family of singularly perturbed q-difference-differential equations in the complex domain are constructed and studied from an asymptotic point of view with respect to the perturbation parameter.
Alberto Lastra, Stéphane Malek
doaj   +1 more source

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