Results 41 to 50 of about 20,157,490 (286)

Numerical aspects of computational homogenization [PDF]

open access: yesComputer Methods in Materials Science, 2013
Computational homogenization enables replacement of a heterogeneous domain by an equivalent body with effective material parameters. Approach that we use is based on two-scale micro/macro analysis.
Marta Serafin, Witold Cecot
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced 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

Numerical Analysis of Convection–Diffusion Using a Modified Upwind Approach in the Finite Volume Method

open access: yesMathematics, 2020
The main focus of this study was to develop a numerical scheme with new expressions for interface flux approximations based on the upwind approach in the finite volume method.
Arafat Hussain   +2 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

TIME-CONSERVATIVE FINITE-VOLUME METHOD WITH LARGE-EDDY SIMULATION FOR COMPUTATIONAL AEROACOUSTICS [PDF]

open access: yes, 2010
This thesis presents a time-conservative finite-volume method based on a modern flow simulation technique developed by the author. Its applicability to technically relevant aeroacoustic applications is demonstrated.
AYBAY, ORHAN
core  

A fully discrete evolving surface finite element method [PDF]

open access: yes, 2012
In this paper we consider a time discrete evolving surface finite element method for the advection and diffusion of a conserved scalar quantity on a moving surface.
Dziuk, Gerhard, Elliott, Charles M.
core   +1 more source

Discrete-duality finite volume method for second order elliptic problems

open access: yes, 2005
Conference Maroc 2005International audienceThis paper deals with applications of the "Discrete-Duality Finite Volume" approach to a variety of elliptic problems.
Delcourte, Sarah   +2 more
core   +5 more sources

A control volume based formulation of the discrete Kirchoff triangular thin plate bending element [PDF]

open access: yes, 2009
A control volume method is presented for predicting the displacement and rotation of thin transversely loaded flat plates. The new procedure uses discrete Kirchoff triangle (DKT) elements but introduces a dual mesh of interconnected control volumes (CVs)
Wheel, M. A., Beveridge, A. J.
core   +2 more sources

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

Dynamo equation solution using Finite Volume Method for midlatitude ionosphere

open access: yesGeodesy and Geodynamics, 2018
Ionosphere is the layer of atmosphere which plays an important role both in space based navigation, positioning and communication systems and HF signals. The structure of the electron density is a function of spatio-temporal variables. The electrodynamic
Feza Arikan, Umut Sezen, Orhan Arikan
doaj   +1 more source

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