Results 41 to 50 of about 33,265 (319)

A derivation of the entropy-based relativistic smoothed particle hydrodynamics by variational principle

, 2017
In this work, a second order smoothed particle hydrodynamics is derived for the study of relativistic heavy ion collisions. The hydrodynamical equation of motion is formulated in terms of the variational principle.
Chen, Weixian, Mota, Philipe, Qian, Wei-Liang   +2 more
core   +1 more source

A discretized integral hydrodynamics [PDF]

, 1997
Using an interpolant form for the gradient of a function of position, we write an integral version of the conservation equations for a fluid. In the appropriate limit, these become the usual conservation laws of mass, momentum and energy. We also discuss
A. W. Lees, B. Alder, C. A. Marsh, C. A. Marsh, C. W. Gardiner, D. C. Rapaport, D. C. Rapaport, D. H. Rothman, E. S. Boek, F. J. Alexander, H. A. Posch, H. A. Posch, H. Takeda, J. J. Monaghan, J. M. V. A. Koelman, J. Miguel Rubí, L. B. Lucy, L. D. Libersky, L. Landau, L. Lifshitz, M. Malek Mansour, M. Mareschal, P. Español, P. Español, P. J. Hoogerbrugge, P. V. Conveney, R. Benzi, U. Frisch, Víctor Romero-Rochín, W. van Saarloos   +29 more
core   +3 more sources

Adaptive Smoothed Particle Hydrodynamics: Methodology. II. [PDF]

The Astrophysical Journal Supplement Series, 1998
92 pages, includes 58 Postscript figures. Accepted for ApJS. Several discussions expanded and 3-D tests added compared with previous version. Higher resolution version available at http://www.astronomy.ohio-state.edu/~owen/Pubs.html .
Owen, J. Michael, Villumsen, Jens V., Shapiro, Paul R., Martel, Hugo   +3 more
openaire   +2 more sources

Quantum algorithm for smoothed particle hydrodynamics

Computer Physics Communications, 2023
Published in Computer Physics Communications, 14 ...
R. Au-Yeung, A.J. Williams, V.M. Kendon, S.J. Lind   +3 more
openaire   +3 more sources

An Intelligent SPH Framework Based on Machine-Learned Residual Correction for Elliptic PDEs

Algorithms
We present an intelligent, non-intrusive framework to enhance the performance of Symmetric Smoothed Particle Hydrodynamics (SSPH) for elliptic partial differential equations, focusing on the linear and nonlinear Poisson equations.
Ammar Qarariyah, Tianhui Yang, Fang Deng
doaj   +1 more source

Modelling free surface flows with smoothed particle hydrodynamics

Condensed Matter Physics, 2006
In this paper the method of Smoothed Particle Hydrodynamics (SPH) is extended to include an adaptive density kernel estimation (ADKE) procedure. It is shown that for a van der Waals (vdW) fluid, this method can be used to deal with free-surface phenomena
L.Di G.Sigalotti, J.Daza, A.Donoso
doaj   +1 more source

Kelvin-Helmholtz instabilities in Smoothed Particle Hydrodynamics

, 2010
In this paper we investigate whether Smoothed Particle Hydrodynamics (SPH), equipped with artificial conductivity, is able to capture the physics of density/energy discontinuities in the case of the so-called shearing layers test, a test for examining ...
Agertz, Chandrasekhar, Cummins, Dubey, E. Rödiger, Fryxell, Fulk, Gingold, H. Dejonghe, Hess, Hu, Johnson, Kawata, Lucy, Merlin, Monaghan, Monaghan, Morris, Okamoto, Price, Read, Robertson, Rosswog, S. De Rijcke, S. Valcke, Schuessler, Sigalotti, Sod, Springel, Springel, Tartakovsky, Tasker, Thomas, Vanaverbeke   +33 more
core   +1 more source

NUMERICAL CONVERGENCE IN SMOOTHED PARTICLE HYDRODYNAMICS [PDF]

The Astrophysical Journal, 2015
We study the convergence properties of smoothed particle hydrodynamics (SPH) using numerical tests and simple analytic considerations. Our analysis shows that formal numerical convergence is possible in SPH only in the joint limit $N \rightarrow \infty$, $h \rightarrow 0$, and $N_{nb} \rightarrow \infty$, where $N$ is the total number of particles, $h$
Qirong Zhu, Lars Hernquist, Yuexing Li
openaire   +3 more sources

Axisymmetric smoothed particle magnetohydrodynamics

Monthly Notices of the Royal Astronomical Society, 2022
ABSTRACT Many astrophysical and terrestrial scenarios involving magnetic fields can be approached in axial geometry. Although the smoothed particle hydrodynamics (SPH) technique has been successfully extended to magnetohydrodynamics (MHD), a well-verified, axisymmetric MHD scheme based on such technique does not exist yet.
García Senz, Domingo, Wissing, Robert, Cabezón Gómez, Rubén Martín, Vurgun, Eda, Linares Herreros, María Paz   +4 more
openaire   +5 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source