Results 1 to 10 of about 7,462,032 (343)

Absorbing boundary conditions for the numerical simulation of waves [PDF]

open access: bronze, 1977
In practical calculations, it is often essential to introduce artificial boundaries to limit the area of computation. Here we develop a systematic method for obtaining a hierarchy of local boundary conditions at these artifical boundaries. These boundary
Björn Engquist, Andrew J. Majda
semanticscholar   +3 more sources

Numerical simulations of jets [PDF]

open access: yesNew Astronomy Reviews, 2021
When astrophysical jets were discovered one hundred years ago, the field of numerical simulations did not yet exit. Since the arrival of programmable computers though, numerical simulations have increasingly become an indispensable tool for dealing with “tough nut” problems which involve complex dynamic and non-linear phenomena.
Serguei Komissarov, Oliver Porth
openaire   +4 more sources

Fused Filament Fabrication Process: A Review of Numerical Simulation Techniques

open access: yesPolymers, 2021
Three-dimensional printing (3DP), also known as additive manufacturing (AM), has rapidly evolved over the past few decades. Researchers around the globe have been putting their efforts into AM processes improvement and materials development.
Ans Al Rashid, M. Koç
semanticscholar   +1 more source

Numerical simulation of a guitar [PDF]

open access: yesComputers & Structures, 2003
The purpose of this study is to present a time-domain numerical modeling of the guitar. The model involves the transverse displacement of the string excited by a force pulse, the flexural motion of the soundboard and the sound radiation in the air. We use a specific spectral method for solving the Kirchhoff-Love's dynamic plate model for orthotropic ...
Bécache, Eliane   +3 more
openaire   +6 more sources

Simplified Interfacial Area Modeling in Polydisperse Two-Phase Flows under Explosion Situations

open access: yesFire, 2023
The aim of the present work is to account for polydisperse effects in a two-phase flow with a simple and fast method. Polydisperse two-phase flows arise in numerous applications.
Konstantinos Feroukas   +2 more
doaj   +1 more source

Numerical Simulation of Mammatus [PDF]

open access: yesJournal of the Atmospheric Sciences, 2008
AbstractMammatus are hanging lobes on the underside of clouds. Although many different mechanisms have been proposed for their formation, none have been rigorously tested. In this study, three-dimensional numerical simulations of mammatus on a portion of a cumulonimbus cirruslike anvil are performed to explore some of the dynamic and microphysical ...
Kanak, Katharine M.   +2 more
openaire   +3 more sources

An immersed boundary method for practical simulations of high-Reynolds number flows by k-ε RANS models

open access: yesJournal of Fluid Science and Technology, 2021
A combustion simulation software tool, “HINOCA”, has been developed for automotive engine analysis. HINOCA is based on fully compressible Navier-Stokes equations, which are Reynolds-averaged (RANS) or spatially-filtered (LES), and employs the Cartesian ...
Hiroki YAO   +2 more
doaj   +1 more source

Semiconvection: numerical simulations [PDF]

open access: yesAstronomy & Astrophysics, 2013
arXiv admin note: substantial text overlap with arXiv:1012 ...
Florian Zaussinger, Henk C. Spruit
openaire   +3 more sources

A Long-Term Passive Microwave Snowoff Record for the Alaska Region 1988–2016

open access: yesRemote Sensing, 2020
Snowoff (SO) date—defined as the last day of observed seasonal snow cover—is an important governor of ecologic and hydrologic processes across Alaska and Arctic-Boreal landscapes; however, our understanding and capacity for the monitoring of ...
Caleb G. Pan   +3 more
doaj   +1 more source

Numerical simulations of wave breaking [PDF]

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 2005
This paper is devoted to the numerical simulation of wave breaking. It presents the results of a numerical workshop that was held during the conference LOMA04. The objective is to compare several mathematical models (compressible or incompressible) and associated numerical methods to compute the flow field during a wave breaking over a reef.
Helluy, Philippe   +12 more
openaire   +7 more sources

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