Results 11 to 20 of about 43,210 (256)

A PSBFEM Approach for Solving Seepage Problems Based on the Pixel Quadtree Mesh

open access: yesGeofluids, 2023
This paper presents a PSBFEM approach that integrates the quadtree mesh generation technique based on digital images for solving seepage problems. The quantitative representation of the distribution of geometrical information and material parameters is ...
Mingjiao Yan   +4 more
doaj   +1 more source

A free‐cutting mesh strategy for optimal shape synthesis in magnetics

open access: yesIET Science, Measurement & Technology, 2022
The authors propose an innovative technique for dealing with optimal shape design problems that exploits the flexibility of the virtual element method in generating meshes composed of general polygonal and polyhedral elements.
F. Dassi, P. Di Barba, A. Russo
doaj   +1 more source

Free and Forced Vibration Analysis in Abaqus Based on the Polygonal Scaled Boundary Finite Element Method

open access: yesAdvances in Civil Engineering, 2021
The polygonal scaled boundary finite element method (PSBFEM) is a novel approach integrating the standard scaled boundary finite element method and the polygonal mesh technique. In this work, a user-defined element (UEL) for dynamic analysis based on the
Nan Ye, Chao Su, Yang Yang
doaj   +1 more source

A Local Adaptive Mesh Refinement for JFO Cavitation Model on Cartesian Meshes

open access: yesApplied Sciences, 2021
Nonuniform mesh is beneficial to reduce computational cost and improve the resolution of the interest area. In the paper, a cell-based adaptive mesh refinement (AMR) method was developed for bearing cavitation simulation.
Wanjun Xu   +4 more
doaj   +1 more source

An adaptive multigrid tool for elliptic and parabolic systems [PDF]

open access: yes, 2005
This paper describes a multigrid tool for use with adaptively refined meshes in two dimensions. A standard full approximation storage (FAS) multigrid scheme is modified to maintain efficient performance on non-uniform grids arising as a result of local ...
Baines   +8 more
core   +1 more source

On the use of the eXtended Finite Element Method with Quatree/Octree meshes [PDF]

open access: yes, 2010
International audienceThis paper describes the use of the eXtended Finite Element Method in the context of quadtree/octree meshes. Particular attention is paid on the enrichment of hanging nodes that inevitably arise with these meshes.
Allais, Raphaël   +2 more
core   +3 more sources

Stable discontinuous Galerkin FEM without penalty parameters [PDF]

open access: yes, 2015
We propose a modified local discontinuous Galerkin (LDG) method for second--order elliptic problems that does not require extrinsic penalization to ensure stability.
John, Lorenz   +2 more
core   +5 more sources

Finger Search in Grammar-Compressed Strings [PDF]

open access: yes, 2016
Grammar-based compression, where one replaces a long string by a small context-free grammar that generates the string, is a simple and powerful paradigm that captures many popular compression schemes.
Bille, Philip   +3 more
core   +3 more sources

Breeding report of a new small-sized colored flesh watermelon cultivar Zhongli 20 with high-quality and storage resistance [PDF]

open access: yesGuoshu xuebao
Zhongli 20 is a new small-sized colored-flesh watermelon selected from a cross between a red-fleshed watermelon 19F22 and a yellow-fleshed watermelon 19F09. The entire growth period was about 95 days, and the fruit growth period was about 30 days.
ZHOU Dan   +3 more
doaj   +1 more source

n-sided polygonal hybrid finite elements involving element boundary integrals only for anisotropic thermal analysis

open access: yesArchives of Mechanics, 2020
As a combination of the traditional finite element method and boundary element method, the n-sided polygonal hybrid finite element method with fundamental solution kernels, named as HFS-FEM, is thoroughly studied in this work for two-dimensional heat ...
R.F. Cao, X.J. Zhao, W.Q. Lin, H. Wang
doaj   +1 more source

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