Results 61 to 70 of about 12,751,481 (301)
Advanced Engineering Materials, EarlyView.Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
wiley +1 more source
HPC Parallelisation of Boundary Conditions in Multiscale Methods
Journal of Algorithms & Computational Technology, 2014 This paper investigates two numerical implementations of continuum boundary conditions in parallel high performance computing (HPC) systems in conjunction with multiscale modelling comprising molecular dynamics (MD) and computational fluid dynamics (CFD)
Nikolaos Asproulis, Dimitris Drikakis
doaj +1 more source
International Journal of Applied Earth Observations and Geoinformation, 2021 To date, although numerous methods of Change detection (CD) in remote sensing images have been proposed, accurately identifying changes is still a great challenge, due to the difficulties in effectively modeling the features from ground objects with ...
Junzheng Wu +6 more
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Finite element heterogeneous multiscale methods with near optimal computational complexity
, 2007 This paper is concerned with a numerical method for multiscale elliptic problems. Using the framework of the heterogeneous multiscale methods (HMM), we propose a micro-macro approach which combines the finite element method (FEM) for the macroscopic ...
Engquist, Björn,, Abdulle, A.
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Multiscale mass conservative domain decomposition preconditioners for elliptic problems on irregular grids [PDF]
, 2011 Multiscale methods can in many cases be viewed as special types of domain decomposition preconditioners. The localisation approximations introduced within the multiscale framework are dependent upon both the heterogeneity of the reservoir and the ...
Jan Martin Nordbotten +5 more
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Advanced Engineering Materials, EarlyView.A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi +3 more
wiley +1 more source
Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials
Advanced Engineering Materials, EarlyView.Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley +1 more source
Multiscale Analysis of Accelerated Gradient Methods [PDF]
SIAM Journal on Optimization, 2020 Minor revisions; Accepted for Publication in SIAM Journal on ...
openaire +3 more sources
Computational Multiscale Methods [PDF]
Oberwolfach Reports, 2015 Almost all processes in engineering and the sciences are characterised by the complicated relation of features on a large range of nonseparable spatial and time scales. The workshop concerned the computer-aided simulation of such processes, the underlying numerical algorithms and the mathematics behind them to foresee their performance in practical ...
Carsten Carstensen +2 more
openaire +1 more source
An assessment of two classes of variational multiscale methods for the simulation of incompressible turbulent flows [PDF]
, 2020 A numerical assessment of two classes of variational multiscale (VMS) methods for the simulation of incompressible flows is presented. Two types of residual-based VMS methods and two types of projection-based VMS methods are included in this assessment ...
Ahmed, Naveed, John, Volker
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