Results 31 to 40 of about 13,287 (303)
Adaptive Finite Volume Method for the Shallow Water Equations on Triangular Grids
Advances 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
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Adaptive mesh refinements for thin shells whose middle surface is not exactly known [PDF]
, 2008 A strategy concerning mesh refinements for thin shells computation is presented. The geometry of the shell is given only by the reduced information consisting in nodes and normals on its middle surface corresponding to a coarse mesh.
Salaün, Michel +2 more
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Analysis of marking criteria for mesh adaptation in Cosserat elasticity
MATEC 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
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Convergence of simple adaptive Galerkin schemes based on h − h/2 error estimators [PDF]
, 2008 We discuss several adaptive mesh-refinement strategies based on (h − h/2)-error estimation. This class of adaptivemethods is particularly popular in practise since it is problem independent and requires virtually no implementational overhead.
Ortner, C. +7 more
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A pk-Adaptive Mesh Refinement for Pseudospectral Method to Solve Optimal Control Problem
IEEE Access, 2019 In this paper, a pk-adaptive mesh refinement of pseudospectral method is proposed for solving optimal control problem by using collocation at Legendre-Gauss-Lobatto (LGL) points, motivated by reducing the redundant collocation points in the state-of-art ...
Jun Huang +4 more
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Adaptive mesh refinement for characteristic codes [PDF]
Journal of Computational Physics, 2004 The use of adaptive mesh refinement (AMR) techniques is crucial for accurate and efficient simulation of higher dimensional spacetimes. In this work we develop an adaptive algorithm tailored to the integration of finite difference discretizations of wave-like equations using characteristic coordinates.
Pretorius, Frans, Lehner, Luis
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Deep reinforcement learning for adaptive mesh refinement
Journal of Computational Physics, 2023 Finite element discretizations of problems in computational physics often rely on adaptive mesh refinement (AMR) to preferentially resolve regions containing important features during simulation. However, these spatial refinement strategies are often heuristic and rely on domain-specific knowledge or trial-and-error.
Corbin Foucart +2 more
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Extending the Building Cube Method to Curvilinear Mesh with Adaptive Mesh Refinement
Journal of Fluid Science and Technology, 2014 Building Cube Method (BCM) adopts block-structured Cartesian mesh and finer resolution can be used where the flow contains detailed flow structures. This paper reports the recent progress in extending BCM to curvilinear body-fitted mesh with Adaptive ...
Xinrong SU +2 more
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Research on tetrahedral adaptive mesh grading refinement for intersecting faults
Gong-kuang zidonghuaCurrent tetrahedral adaptive mesh refinement techniques have primarily focused on the 3D reconstruction and analysis of simple stratified geological bodies. When applying adaptive mesh refinement to complex geological structures, such as those containing
CHEN Yingxian +3 more
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An Adaptive h-Refinement Algorithm for Local Damage Models
Algorithms, 2009 An adaptive mesh refinement strategy is proposed for local damage models that often arise from internal state variable based continuum damage models.
Francesco Costanzo, Jonathan S. Pitt
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