Results 251 to 260 of about 1,741,379 (297)

An efficient runtime mesh smoothing technique for 3D explicit Lagrangian free‐surface fluid flow simulations

International Journal for Numerical Methods in Engineering, 2018
A fast runtime mesh smoothing algorithm for explicit Lagrangian simulations of 3D weakly compressible viscous fluid flows, implemented in conjunction with the particle finite element method (PFEM), is proposed.
S. Meduri, M. Cremonesi, U. Perego
semanticscholar   +1 more source

A Parallel Algorithm for Mesh Smoothing

SIAM Journal on Scientific Computing, 1999
The authors present a mesh-smoothing algorithm based on nonsmooth optimization techniques and scalable implementation of this algorithm. The performance of the parallel smoothing algorithm in two and three dimensions is presented for two finite element applications: a scalar Poisson problem and a linear elasticity problem.
Freitag, Lori, Jones, Mark, Plassmann, Paul   +2 more
openaire   +2 more sources

A geometrical approach to mesh smoothing

Computer Methods in Applied Mechanics and Engineering, 2003
The authors are concerned with a local optimization problem involved in the theory of smoothing finite element meshes of triangles and tetrahedra. They introduce a geometric approach in order to solve the optimization problem, based on the level sets of a given metric, as well as a new mesh quality metric for tetrahedra.
Aiffa, M., Flaherty, J. E.
openaire   +2 more sources

Genetic algorithms for mesh surface smoothing

SPIE Proceedings, 2015
ABSTRACT This paper presents a new 3D mesh smoothing algorithm which is based on evolutionary methods. This method is a new optimization technique with Genetic algorithm. The main approach is based on expanding the search space by generating new meshes as genetic individuals.
Ozsaglam, Mehmet Yasin, Cunkas, Mehmet
openaire   +2 more sources

Smooth subdivision of tetrahedral meshes

Proceedings of the 2004 Eurographics/ACM SIGGRAPH symposium on Geometry processing, 2004
We describe a new subdivision scheme for unstructured tetrahedral meshes. Previous tetrahedral schemes based on generalizations of box splines have encoded arbitrary directional preferences in their associated subdivision rules that were not reflected in tetrahedral base mesh.
S. Schaefer, J. Hakenberg, J. Warren
openaire   +1 more source

Human-airway surface mesh smoothing based on graph convolutional neural networks

Comput. Methods Programs Biomed.
BACKGROUND AND OBJECTIVE A detailed representation of the airway geometry in the respiratory system is critical for predicting precise airflow and pressure behaviors in computed tomography (CT)-image-based computational fluid dynamics (CFD). The CT-image-
T. Ho, Minh Tam Tran, Xinguang Cui, Ching-Long Lin, Stephen S. Baek, Woojin Kim, Chang Hyun Lee, Gong Yong Jin, K. Chae, Sanghun Choi   +9 more
semanticscholar   +1 more source

Boundary smoothing for mesh segmentation

2009 11th IEEE International Conference on Computer-Aided Design and Computer Graphics, 2009
In segmentation for reverse engineering, an input triangular mesh is usually split into segments for each of which a parametric surface is generated. The segment boundaries must be smooth for fine surfaces to be generated, but today's segmentation methods cannot necessarily generate a sufficient level of smoothness.
Caiyun Yang, Hiromasa Suzuki, Yutaka Ohtake, Takashi Michikawa   +3 more
openaire   +1 more source

Directional Smoothing of Triangular Meshes

International Conference on Computer Graphics, Imaging and Visualization (CGIV'05), 2005
In this paper, we propose a so-called directional smoothing method based mean curvature flow. The selection of the diffusion direction is based on the descent of some energy functional. We show that the directional diffusion flow is volume-preserving.
null Huanxi Zhao, null Guoliang Xu
openaire   +1 more source

Structure-guided shape-preserving mesh texture smoothing via joint low-rank matrix recovery

Comput. Aided Des., 2019
Mesh texture smoothing (MTS) seeks to smooth out the detailed appearances in noise-free surfaces, while preserving the intrinsic geometric properties.
Honghua Chen, Jin Huang, Oussama Remil, Haoran Xie, J. Qin, Yanwen Guo, Mingqiang Wei, Jun Wang   +7 more
semanticscholar   +1 more source

Flexible multipole moments in smooth particle mesh Ewald

The Journal of Chemical Physics, 2022
The smooth particle mesh Ewald sum is extended with additional force terms that arise from the so-called flexible multipole moments. These are multipole moments (of any rank) that depend explicitly on atomic positions in some local environment that can be made arbitrarily large. By introducing explicit dependence on atomic positions, flexible multipole
Benjamin C. B. Symons, Paul L. A. Popelier   +1 more
openaire   +3 more sources