Results 1 to 10 of about 30,764 (284)

Quadrilateral mesh optimisation method based on swarm intelligence optimisation [PDF]

Scientific Reports
As oil and gas exploration advances, the growing complexity of geological conditions demands higher-quality quadrilateral meshes for spectral element method-based seismic simulations.
Fen Zhang, Jiuyun Tian, Panpan LV, Kaiyun Luo, Yonggu Huang, Shaohui Yang, Fei Deng   +6 more
doaj   +2 more sources

Hexahedral mesh generation via constrained quadrilateralization. [PDF]

PLoS ONE, 2017
Decomposing a volume into high-quality hexahedral cells is a challenging task in finite element simulations and computer graphics. Inspired by the use of a spatial twist continuum and frame field in previous hexahedral mesh generation methods, we present
Feifei Shang, Yangke Gan, Yufei Guo
doaj   +4 more sources

Total Hip Arthroplasty in a Case of Neglected Central Hip Dislocation with Isolated Quadrilateral Plate Fracture: A Case Report with Review of Literature [PDF]

Journal of Orthopaedic Case Reports
Introduction: Isolated quadrilateral plate fracture with central hip dislocation is a rare occurrence. Such difficult-to-treat fractures can be managed with both open reduction and internal fixation (ORIF) and total hip arthroplasty (THA).
Somok Banerjee, Santu Sarkar, Alok Chandra Agrawal, Harshal Sakale, Suhas Mahendrakar, Devashish Singh   +5 more
doaj   +2 more sources

Effect of Mesh Shape and Turbulence Model on Aerodynamic Performance at NACA 4415 [PDF]

Journal of Applied Fluid Mechanics, 2023
This study uses three turbulence model variations, i.e., S - A, k - ε, and k – ω turbulence models. In addition, there are two variations of cell shape and three variations of cell number. The number of cells is 500, 5000, 50000, and 100000. Verification
J. Julian, W. Iskandar, F. Wahyuni
doaj   +1 more source

Quadrilateral Mesh Generation Method Based on Convolutional Neural Network

Information, 2023
The frame field distributed inside the model region characterizes the singular structure features inside the model. These singular structures can be used to decompose the model region into multiple quadrilateral structures, thereby generating a block ...
Yuxiang Zhou, Xiang Cai, Qingfeng Zhao, Zhoufang Xiao, Gang Xu   +4 more
doaj   +1 more source

The analysis of grid independence study in continuous disperse of MQL delivery system

Journal of Mechanical Engineering and Sciences, 2023
A sustainable cutting method of Minimum Quantity Lubricant (MQL) was introduced to promote lubrication effect and improve machinability. However, its performances are very dependent on the effectiveness of its mist to penetrate deep into the cutting ...
Zulaika Zulkifli, N.H. Abdul Halim, Z.H. Solihin, J. Saedon, A.A. Ahmad, A.H. Abdullah, N. Abdul Raof, M. Abdul Hadi   +7 more
doaj   +1 more source

Preconditioning the Quad Dominant Mesh Generator for Ship Structural Analysis

Algorithms, 2021
This paper presents an algorithm for the fully automatic mesh generation for the finite element analysis of ships and offshore structures. The quality requirements on the mesh generator are imposed by the acceptance criteria of the classification ...
Luka Grubišić, Domagoj Lacmanović, Josip Tambača   +2 more
doaj   +1 more source

QUADRILATERAL MESHING BY CIRCLE PACKING [PDF]

International Journal of Computational Geometry & Applications, 2000
We use circle-packing methods to generate quadrilateral meshes for polygonal domains, with guaranteed bounds both on the quality and the number of elements. We show that these methods can generate meshes of several types: (1) the elements form the cells of a Voronoï diagram, (2) all elements have two opposite 90° angles, (3) all elements are kites, or
Bern, Marshall, Eppstein, David
openaire   +3 more sources

FESOM-C v.2: coastal dynamics on hybrid unstructured meshes [PDF]

Geoscientific Model Development, 2019
We describe FESOM-C, the coastal branch of the Finite-volumE Sea ice – Ocean Model (FESOM2), which shares with FESOM2 many numerical aspects, in particular its finite-volume cell-vertex discretization.
A. Androsov, A. Androsov, V. Fofonova, I. Kuznetsov, S. Danilov, S. Danilov, S. Danilov, N. Rakowsky, S. Harig, H. Brix, K. H. Wiltshire   +10 more
doaj   +1 more source

Mesh generation in finite flement frame fields on 2D planes

Nihon Kikai Gakkai ronbunshu, 2020
In numerical analyses based on unstructured meshes represented by the finite element method, quadrilateral and hexa-hedral meshes are used for a two-dimensional and a three-dimensional analyses, respectively, from the viewpoint of calculation accuracy ...
Naoki MORITA, Masanobu HORIE, Kai SUTO
doaj   +1 more source