Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Jens-Peter Lynov"'
Publikováno v:
Applied Numerical Mathematics. 33:199-206
We present a pseudospectral method for the analysis of diffractive optical elements. The method computes a direct time-domain solution of Maxwell's equations and is applied to solving wave propagation in 2D diffractive optical elements.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cfc6f767686e67d856129b5a87dc40a
https://doi.org/10.1016/s0168-9274(99)00084-7
https://doi.org/10.1016/s0168-9274(99)00084-7
Publikováno v:
Technical University of Denmark Orbit
Scopus-Elsevier
ResearcherID
Scopus-Elsevier
ResearcherID
The dynamics of dipolar vortex solutions to the two-dimensional Euler equations is studied. A new type of nonlinear dipole is found and its dynamics in a slightly viscous system is compared with the dynamics of the Lamb dipole. The evolution of dipol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf3b92bb4c5ff5442d6bb4dbb8bbfc81
https://doi.org/10.1016/0378-4754(95)00033-x
https://doi.org/10.1016/0378-4754(95)00033-x
Publikováno v:
Mathematics and Computers in Simulation. 40:223-234
The nonlinear behavior of whistler waves coupled to either fast magnetosonic waves (FMS) or slow magnetosonic waves (SMS) is investigated in two spatial dimensions. For each branch our investigation is based on a numerical solution of a reduced set o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbee36cf75e687f4e3cf3fe0d0368819
https://doi.org/10.1016/0378-4754(95)00034-8
https://doi.org/10.1016/0378-4754(95)00034-8
Publikováno v:
Physica Scripta. :33-37
Experiments on forced circular shear layers performed in both magnetized plasmas and in rotating fluids reveal qualitatively similar self-organization processes leading to the formation of patterns of coherent vortical structures with varying complex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7c9f270dc162fed1e36aa26b9b16694
https://doi.org/10.1088/0031-8949/1996/t67/007
https://doi.org/10.1088/0031-8949/1996/t67/007
Publikováno v:
Physics of Plasmas. 2:3302-3319
The nonlinear evolution of the modulational instability of whistler waves coupled to fast magnetosonic waves (FMS) and to slow magnetosonic waves (SMS) is investigated. Results from direct numerical solutions in two spatial dimensions agree with simp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2edf2ac20376e79d5ad1fb7a90f6c2ab
https://doi.org/10.1063/1.871451
https://doi.org/10.1063/1.871451
Autor:
Sergei K. Turitsyn, E.G. Shapiro, M.R. Schmidt, J. Juul Rasmussen, Anders Nielsen, Jan S. Hesthaven, Jens-Peter Lynov
Publikováno v:
Physics of Fluids. 7:2220-2229
A localized stationary dipole solution to the Euler equations with a relationship between the vorticity and streamfunction given as ω=−ψ+ψ3 is presented. By numerical integration of the Euler equations this dipole is shown to be unstable. Howeve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4b6c7c7de6f960e3d339f06aaa25054
https://doi.org/10.1063/1.868470
https://doi.org/10.1063/1.868470
Publikováno v:
Plasma Physics and Controlled Fusion. 36:B193-B202
The existence and dynamics of vortical structure in both homogeneous and inhomogeneous systems will be discussed. In particular the dynamics of monopolar and dipolar vortices in a plasma with nonuniform density and in a rotating fluid with varying Co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14d7eac77e57a3fa63a2eaab2971cedf
https://doi.org/10.1088/0741-3335/36/12b/016
https://doi.org/10.1088/0741-3335/36/12b/016
Publikováno v:
Journal of Fluid Mechanics. 268:103-131
The long-time evolution of monopolar and dipolar vortices influenced by the largescale gradient of the ambient potential vorticity (the β-effect) is studied by direct numerical solutions of the equivalent barotropic quasi-geostrophic equation. Trans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9653cd049872eb87d050fd8630326e16
https://doi.org/10.1017/s002211209400128x
https://doi.org/10.1017/s002211209400128x
Publikováno v:
Europhysics Letters (EPL). 23:249-255
Steadily propagating monopole vortex solutions to the ηi-mode equations are investigated. A general condition for non-linear vortex solutions to be steadily propagating is derived by demanding that their velocity is outside the regime of linear-wave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef2fba93ecf305fb0e931b679d0d6589
https://doi.org/10.1209/0295-5075/23/4/003
https://doi.org/10.1209/0295-5075/23/4/003
Publikováno v:
Physics of Fluids A: Fluid Dynamics. 5:1674-1678
A new feature of the long‐time evolution of a strong vortex with initially monotonic potential vorticity is found by direct numerical solution of the quasigeostrophic equivalent barotropic equation. Two satellites, which emerge after splitting of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41607364543e7e1b48a0f56f762b6b64
https://doi.org/10.1063/1.858844
https://doi.org/10.1063/1.858844