Results 61 to 70 of about 13,287 (303)

Energy-group Wise Self-adaptive Refinement of Unstructured Mesh for Neutron Transport Simulation

open access: yesYuanzineng kexue jishu
In order to balance the accuracy and efficiency of neutron transport simulation, performing self-adaptive mesh refinement and domain decomposition parallelization for unstructured meshes are technologies that worth exploring.
GUO Haibing, RUAN Zhenglin, MA Jimin
doaj   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Final drive lubrication modeling

open access: yesТруды Института системного программирования РАН, 2018
In this paper, we describe the method, which is the composition of finite volume method (FVM) and adaptive mesh refinement (AMR). We use it to solve car final drive inner volume oil lubrication problem.
E. V. Avdeev   +2 more
doaj   +1 more source

Adaptive phase field modelling of crack propagation in orthotropic functionally graded materials

open access: yesDefence Technology, 2021
In this work, we extend the recently proposed adaptive phase field method to model fracture in orthotropic functionally graded materials (FGMs). A recovery type error indicator combined with quadtree decomposition is employed for adaptive mesh refinement.
Hirshikesh   +2 more
doaj   +1 more source

Adaptive meshless centres and RBF stencils for Poisson equation

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   +1 more source

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

open access: yesAdvanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo   +3 more
wiley   +1 more source

Issues in adaptive mesh refinement implementation

open access: yesElectronic Journal of Differential Equations, 2007
Physical phenomena often involve discontinuities and/or localized high-gradient areas. The numerical simulation of these problems and conventional techniques (Finite Elements, Finite Volumes, Finite Differences, and Spectral Methods) with a uniform grid ...
Noureddine Hannoun, Vasilios Alexiades
doaj  

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Load balanced 2D and 3D adaptive mesh refinement in OpenFOAM

open access: yesSoftwareX, 2019
An object-oriented approach to load-balanced adaptive mesh refinement in two and three dimensions is presented for OpenFOAM, a mature C++ library for computational fluid dynamics. Such a high-performance computing technique is mandatory for computational
Daniel Rettenmaier   +7 more
doaj   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

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