Results 61 to 70 of about 1,793 (184)
A Cubed Sphere Fast Multipole Method
CoRRThis work describes a new version of the Fast Multipole Method for summing pairwise particle interactions that arise from discretizing integral transforms and convolutions on the sphere. The kernel approximations use barycentric Lagrange interpolation on a quadtree composed of cubed sphere grid cells.
Anthony Chen, Robert Krasny
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Implementation of fast algorithms for 2D flow simulation using vortex particle methods
Учёные записки Казанского университета: Серия Физико-математические наукиVortex particle methods of computational hydrodynamics are widely employed by engineers to solve the problems of flow simulation and estimation of unsteady hydrodynamic loads acting on bodies.
E. P. Ryatina +3 more
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AIP Advances, 2018 Fast stray field calculation is commonly considered of great importance for micromagnetic simulations, since it is the most time consuming part of the simulation.
P. Palmesi +3 more
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Turn Broad Into Narrow: Understanding the Pr3+ → Gd3+ Energy Transfer in Cs2NaYCl6
Advanced Optical Materials, Volume 14, Issue 22, 12 June 2026.The energy transfer processes of Pr3+ in elpasolite‐like Cs2NaY1‐xGdxCl6: 1mol%$1 \,\mathrm{mol}\%$ Pr3+ is investigated by steady‐state and time‐resolved spectroscopy. An analysis of the multiexponential decays in the framework of the shell model of energy transfer suggests an occupation of both the Y and Na sites by Pr3+ in this host.
Tom Förster +5 more
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Plasmonic–Diamond Hybrids: Tunable Optical and Thermal Response for Nanoscale Applications
Advanced Theory and Simulations, Volume 9, Issue 6, June 2026.Finite‐element simulations demonstrate that nanodiamond cores precisely regulate plasmonic coupling, absorption, electric‐field confinement, and photothermal heating in gold and silver nanoparticle clusters. By identifying interparticle spacing, particle number, core conductivity, and surrounding refractive index as key design parameters, this work ...
Muhammad Qamar +2 more
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International Journal of Aerospace EngineeringThe radome of high-speed aircraft could suffer harsh thermal load during service, which affects the electromagnetic transmission performance of the radome.
Yanbin Li +3 more
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Mechanical Engineering Journal, 2014 We have been investigating applications of a topology optimisation method with the level set method. In this study, to further enhance the applicability of the method, we investigate a topology optimisation method for three-dimensional scalar wave ...
Hiroshi ISAKARI +5 more
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Annalen der Physik, Volume 538, Issue 6, June 2026.This study examines slowly rotating traversable wormholes supported by string fluids whose properties change with radius. The matter smoothly shifts from a de Sitter‐like core to a string‐dominated exterior, producing a regular, horizon‐free spacetime.
A. Errehymy +5 more
wiley +1 more source
Generalized fast multipole method
IOP Conference Series: Materials Science and Engineering, 2010 The fast multipole method (FMM) is a technique allowing the fast calculation of long-range interactions between N points in O(N) or O(N ln N) steps with some prescribed error tolerance. The FMM has found many applications in the field of integral equations and boundary element methods, in particular by accelerating the solution of dense linear systems ...
Pierre-David Létourneau +2 more
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Stress analysis of linear elastic structures by the fast multipole boundary element method
Computer Assisted Methods in Engineering and Science, 2017 In this paper a fast multipole boundary element method (FMBEM) analysis of internal stress in twodimensional linear elastic structures is presented.
Jacek Ptaszny, Piotr Fedeliński
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