Results 1 to 10 of about 7,478,587 (195)

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
B. Engquist, A. 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

Numerical simulation of materials-oriented ultra-precision diamond cutting: review and outlook

open access: yesInternational Journal of Extreme Manufacturing, 2023
Ultra-precision diamond cutting is a promising machining technique for realizing ultra-smooth surface of different kinds of materials. While fundamental understanding of the impact of workpiece material properties on cutting mechanisms is crucial for ...
Liang Zhao   +5 more
semanticscholar   +1 more source

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   +3 more sources

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

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

Numerical simulations of wave breaking [PDF]

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 2005
Summary: 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   +6 more sources

Numerical simulations for sonochemistry

open access: yesUltrasonics Sonochemistry, 2021
Numerical simulations for sonochemistry are reviewed including single-bubble sonochemistry, influence of ultrasonic frequency and bubble size, acoustic field, and sonochemical synthesis of nanoparticles. The theoretical model of bubble dynamics including the effect of non-equilibrium chemical reactions inside a bubble has been validated from the study ...
openaire   +4 more sources

The Numerical Simulation in Ballistics

open access: yesNonlinear Analysis: Modelling and Control, 2001
In this paper we examine the movement of the solid body thrown with some angle to the horizon (for example the shot mine). Such movement is described by non-linear system of equations. This system is being approximated by linear system, in segments. The experiment results have been approximated and the dependence of air resistance coefficient from mean
G. Misevičius   +2 more
openaire   +4 more sources

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