Results 41 to 50 of about 128,865 (293)

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

open access: yesGeoscientific 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   +10 more
doaj   +1 more source

Mesh-Free MLS-Based Error-Recovery Technique for Finite Element Incompressible Elastic Computations

open access: yesApplied Sciences, 2023
The finite element error and adaptive analysis are implemented in finite element procedures to increase the reliability of numerical analyses. In this paper, the mesh-free error-recovery technique based on moving least squares (MLS) interpolation is ...
Nabil Ben Kahla   +2 more
doaj   +1 more source

New Weights for Estimating Normal Surface in the Triangular Mesh [PDF]

open access: yesEurasian Journal of Science and Engineering, 2017
The normal vector at a node on the discrete surface is not unique, when a surface discretized by triangular elements. A widely used technique to estimate the normal vector at a giving node is a weighted average of the exact normal of the surrounding ...
Kawa M. A. Manmi
doaj   +1 more source

Guaranteed-Quality Triangular Meshes [PDF]

open access: yes, 1989
There are a number of applications for which it is desirable to divide a given region in the plane into nicely shaped triangles. One important such application is the finite element method, a method widely used to obtain approximate solutions to a wide variety of engineering problems.
openaire   +1 more source

Flipping Cubical Meshes

open access: yes, 2002
We define and examine flip operations for quadrilateral and hexahedral meshes, similar to the flipping transformations previously used in triangular and tetrahedral mesh generation.Comment: 20 pages, 24 figures.
Bern, Marshall   +2 more
core   +3 more sources

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

open access: yesAdvanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang   +3 more
wiley   +1 more source

A detail-preserving method for medial mesh computation in triangular meshes

open access: yesGraphical Models
The medial axis transform (MAT) of an object is the set of all points inside the object that have more than one closest point on the object’s boundary. Representing sharp edges and corners of triangular meshes using MAT poses a complex challenge.
Bingchuan Li   +5 more
doaj   +1 more source

Boolean operations between two colliding shells: a robust, exact, and simple method

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2017
Boolean operations are classic procedures in computer-aided design, and allow the creation of complex objects by combining simple objects. Although Boolean operations are trivial in implicit surface representations, they are problematic in polygonal ...
Jerome CHARTON   +2 more
doaj   +1 more source

Hybrid mesh for magnetotelluric forward modeling based on the finite element method

open access: yesScientific Reports, 2023
Unstructured tetrahedral grids have been applied in magnetotelluric (MT) forward modeling using the finite element (FE) method because of their adaptability to complex anomalies.
Nian Yu   +5 more
doaj   +1 more source

Geodesic paths on triangular meshes [PDF]

open access: yesProceedings. 17th Brazilian Symposium on Computer Graphics and Image Processing, 2004
We present a new algorithm to compute a geodesic path over a triangulated surface. Based on Sethian's (1996) fast marching method and Polthier's (1998) straightest geodesics theory, we are able to generate an iterative process to obtain a good discrete geodesic approximation. It can handle convex and nonconvex surfaces as well.
D. Martinez, L. Velho, P.C. Carvalho
openaire   +1 more source

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