Results 11 to 20 of about 18,760 (165)

Free convection investigation for a Casson-based Cu−H2O nanofluid in semi parabolic enclosure with corrugated cylinder [PDF]

open access: yesHeliyon
The optimization of heat transfer in various engineering applications, such as thermal management systems and energy storage devices, remains a crucial challenge. This study aims to investigate the potential of Casson-based Cu-H2O nanofluids in enhancing
Rafel H. Hameed   +7 more
doaj   +2 more sources

A Dimension Splitting-Interpolating Moving Least Squares (DS-IMLS) Method with Nonsingular Weight Functions

open access: yesMathematics, 2021
By introducing the dimension splitting method (DSM) into the improved interpolating moving least-squares (IMLS) method with nonsingular weight function, a dimension splitting–interpolating moving least squares (DS-IMLS) method is first proposed.
Jufeng Wang, Fengxin Sun, Rongjun Cheng
doaj   +1 more source

The improved element-free Galerkin method for elastoplasticity large deformation problems [PDF]

open access: yesSCIENTIA SINICA Physica, Mechanica & Astronomica, 2018
Based on the improved moving least-squares (IMLS) approximation, the improved element-free Galerkin (IEFG) method for elastoplasticity large deformation problems is presented. Compared with the moving least-squares (MLS) approximation, by orthogonalizing the basis function, the IMLS approximation can overcome the disadvantage of ill-conditional or ...
XiaoJie CAI, MiaoJuan PENG, YuMin CHENG
openaire   +1 more source

Analyzing 3D Advection-Diffusion Problems by Using the Improved Element-Free Galerkin Method [PDF]

open access: yesMathematical Problems in Engineering, 2020
In this paper, the improved element-free Galerkin (IEFG) method is used for solving 3D advection-diffusion problems. The improved moving least-squares (IMLS) approximation is used to form the trial function, the penalty method is applied to introduce the essential boundary conditions, the Galerkin weak form and the difference method are used to obtain ...
Heng Cheng, Guodong Zheng
openaire   +2 more sources

The interpolating element-free Galerkin method for three-dimensional transient heat conduction problems

open access: yesResults in Physics, 2020
In this study, the interpolating element-free Galerkin (IEFG) method for solving three-dimensional (3D) transient heat conduction problem is presented.
D. Liu, Y.M. Cheng
doaj   +1 more source

A discontinuous Galerkin method for a new class of Green-Naghdi equations on simplicial unstructured meshes [PDF]

open access: yes, 2016
In this paper, we introduce a discontinuous Finite Element formulation on simplicial unstructured meshes for the study of free surface flows based on the fully nonlinear and weakly dispersive Green-Naghdi equations.
Duran, Arnaud, Marche, Fabien
core   +5 more sources

Numerical solution for one-dimensional pure-convection problems using the high-order Taylor-Galerkin element-free method [PDF]

open access: yesمهندسی عمران شریف
The present study proposes a novel approach for solving one-dimensional pure convection problems, utilizing a high-order Taylor Galerkin element-free method. The standard Galerkin method has limitations in solving such problems due to the predominance of
S. Espahbodi Nia, Ali Rahmani Firoozjaee
doaj   +1 more source

A space-time mixed Galerkin marching-on-in-time scheme for the time-domain combined field integral equation [PDF]

open access: yes, 2013
The time domain combined field integral equation (TD-CFIE), which is constructed from a weighted sum of the time domain electric and magnetic field integral equations (TD-EFIE and TD-MFIE) for analyzing transient scattering from closed perfect ...
Bagci, Hakan   +3 more
core   +2 more sources

Multi-patch discontinuous Galerkin isogeometric analysis for wave propagation: explicit time-stepping and efficient mass matrix inversion [PDF]

open access: yes, 2018
We present a class of spline finite element methods for time-domain wave propagation which are particularly amenable to explicit time-stepping. The proposed methods utilize a discontinuous Galerkin discretization to enforce continuity of the solution ...
Chan, Jesse, Evans, John A
core   +3 more sources

High-order DG solvers for under-resolved turbulent incompressible flows: A comparison of $L^2$ and $H$(div) methods [PDF]

open access: yes, 2019
The accurate numerical simulation of turbulent incompressible flows is a challenging topic in computational fluid dynamics. For discretisation methods to be robust in the under-resolved regime, mass conservation as well as energy stability are key ...
Fehn, Niklas   +4 more
core   +2 more sources

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