Results 11 to 20 of about 56,790 (264)

Adaptive Mesh Refinement in Titanium [PDF]

open access: yes19th IEEE International Parallel and Distributed Processing Symposium, 2005
In this paper, we evaluate Titanium's usability as a high-level parallel programming language through a case study, where we implement a subset of Chombo's functionality in Titanium. Chombo is a software package applying the adaptive mesh refinement methodology to numerical partial differential equations at the production level.
Colella, Phillip, Wen, Tong
openaire   +2 more sources

Local h-adaptive refinement method applied to solid mechanics

open access: yesApplied and Computational Mechanics, 2020
A good spatial discretization is of prime interest in the accuracy of the finite element method. This paper presents a new refinement criterion dedicated to an h-type refinement method called Conforming Hierarchical Adaptive Refinement MethodS (CHARMS ...
Daridon L.   +3 more
doaj   +1 more source

Parallel Algorithms for Adaptive Mesh Refinement [PDF]

open access: yesSIAM Journal on Scientific Computing, 1997
Summary: Computational methods based on the use of adaptively constructed nonuniform meshes reduce the amount of computation and storage necessary to perform many scientific calculations. The adaptive construction of such nonuniform meshes is an important part of these methods.
Mark T. Jones, Paul E. Plassmann
openaire   +1 more source

Ocean Modeling with Adaptive REsolution (OMARE; version 1.0) – refactoring the NEMO model (version 4.0.1) with the parallel computing framework of JASMIN – Part 1: Adaptive grid refinement in an idealized double-gyre case [PDF]

open access: yesGeoscientific Model Development, 2023
High-resolution models have become widely available for the study of the ocean's small-scale processes. Although these models simulate more turbulent ocean dynamics and reduce uncertainties of parameterizations, they are not practical for long-term ...
Y. Zhang   +13 more
doaj   +1 more source

SUHMO: an adaptive mesh refinement SUbglacial Hydrology MOdel v1.0 [PDF]

open access: yesGeoscientific Model Development, 2023
Water flowing under ice sheets and glaciers can have a strong influence on ice dynamics, particularly through pressure changes, suggesting that a comprehensive ice sheet model should include the effect of basal hydrology.
A. M. Felden, D. F. Martin, E. G. Ng
doaj   +1 more source

Efficient Local Refinement near Parametric Boundaries Using kd-Tree Data Structure and Algebraic Level Sets

open access: yesAlgorithms, 2022
In analysis of problems with parametric spline boundaries that are immersed or inserted into an underlying domain, the discretization on the underlying domain usually does not conform to the inserted boundaries.
Tao Song, Huanyu Liao, Ganesh Subbarayan
doaj   +1 more source

Issues in adaptive mesh refinement [PDF]

open access: yes2010 IEEE International Symposium on Parallel & Distributed Processing, Workshops and Phd Forum (IPDPSW), 2010
In this paper, we present an approach for a patch-based adaptive mesh refinement (AMR) for multi-physics simulations. The approach consists of clustering, symmetry preserving, mesh continuity, flux correction, communications, management of patches, and dynamical load balance.
openaire   +1 more source

Adaptive Grid Refinement for Discrete Tomography [PDF]

open access: yes, 2014
Discrete tomography has proven itself as a powerful approach to image reconstruction from limited data. In recent years, algebraic reconstruction methods have been applied successfully to a range of experimental data sets. However, the computational cost of such reconstruction techniques currently prevents routine application to large data-sets.
T. van Leeuwen (Tristan)   +1 more
openaire   +4 more sources

Energy calibration via correlation using an adaptive mesh refinement [PDF]

open access: yesEPJ Web of Conferences, 2020
Energy calibration via correlation has proven to be a powerful calibration method especially in the case of calibration data sets with low counting statistics. This work reports on an evolved version of this approach that uses an adaptive mesh refinement
Maier Daniel   +2 more
doaj   +1 more source

Reinforcement Learning for Adaptive Mesh Refinement

open access: yesCoRR, 2021
Large-scale finite element simulations of complex physical systems governed by partial differential equations (PDE) crucially depend on adaptive mesh refinement (AMR) to allocate computational budget to regions where higher resolution is required. Existing scalable AMR methods make heuristic refinement decisions based on instantaneous error estimation ...
Jiachen Yang   +11 more
openaire   +3 more sources

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