Results 11 to 20 of about 1,628,090 (248)

Flow Feature Aligned Mesh Generation and Adaptation [PDF]

open access: yes, 2013
Methods which allow for construction of flow feature aligned meshes in two- and three-dimensions have been developed in this thesis to investigate their potential for improvements in the numerical solution relative to globally refining the mesh.
Harris, Matthew
core   +6 more sources

A discontinuous Galerkin moving mesh method for Hamilton-Jacobi equations [PDF]

open access: yes, 2007
In this paper we consider the numerical solution of first-order Hamilton-Jacobi equations using the combination of a discontinuous Galerkin finite element method and an adaptive $r$-refinement (mesh movement) strategy.
MacKenzie, John, Nicola, Aurelian
core   +4 more sources

Adaptive meshless centres and RBF stencils for Poisson equation [PDF]

open access: yes, 2011
We consider adaptive meshless discretisation of the Dirichlet problem for Poisson equation based on numerical differentiation stencils obtained with the help of radial basis functions. New meshless stencil selection and adaptive refinement algorithms are
Oleg Davydov   +3 more
core   +4 more sources

Adaptive mesh refinement computation of acoustic radiation from an engine intake [PDF]

open access: yes, 2008
A block-structured adaptive mesh refinement (AMR) method was applied to the computational problem of acoustic radiation from an aeroengine intake. The aim is to improve the computational and storage efficiency in aeroengine noise prediction through ...
Zhang, Xin   +5 more
core   +1 more source

Swarm Reinforcement Learning For Adaptive Mesh Refinement [PDF]

open access: yes, 2023
Adaptive Mesh Refinement (AMR) enhances the Finite Element Method, an important technique for simulating complex problems in engineering, by dynamically refining mesh regions, enabling a favorable trade-off between computational speed and simulation ...
Kärger, Luise   +5 more
core   +4 more sources

Applications of Adaptive-mesh Refinement in Computational Fluid Dynamics to Problems of Turbulent Flow and Heat Exchange [PDF]

open access: yes, 2009
Strujanje fluida i izmjena topline su važni procesi u klimatizacijskim uređajima, stoga je njihovo funkcioniranje vrlo vezano uz razumijevanje procesa strujanja i izmjene topline. Numerička mehanika fluida (CFD) je moderni alat koji inženjerima omogućuje
David GOSMAN   +3 more
core   +1 more source

Adaptive Finite Volume Method for the Shallow Water Equations on Triangular Grids

open access: yesAdvances in Mathematical Physics, 2016
This paper presents a numerical entropy production (NEP) scheme for two-dimensional shallow water equations on unstructured triangular grids. We implement NEP as the error indicator for adaptive mesh refinement or coarsening in solving the shallow water ...
Sudi Mungkasi
doaj   +1 more source

Refinement Algorithms for Adaptive Isogeometric Methods with Hierarchical Splines

open access: yesAxioms, 2018
The construction of suitable mesh configurations for spline models that provide local refinement capabilities is one of the fundamental components for the analysis and development of adaptive isogeometric methods.
Cesare Bracco   +2 more
doaj   +1 more source

Analysis of marking criteria for mesh adaptation in Cosserat elasticity

open access: yesMATEC Web of Conferences, 2018
The article is devoted to comparison of finite element marking criteria for adaptive mesh refinement while solving plane Cosserat elasticity problems. The goal is to compare the resulting adaptive meshes obtained with different marking strategies.
Churilova Maria
doaj   +1 more source

Improvements of efficiency of finite element simulations of solidification due to adaptive mesh refinement and time-step selection [PDF]

open access: yesComputer Methods in Materials Science, 2004
The paper deals with an application of adaptive mesh refinement and automatic time-step selection techniques to numerical simulations of solidification. High cooling and heating rates in the beginning of the process involve the need for using very small ...
Arkadiusz Nagórka
doaj   +1 more source

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