Zobrazeno 1 - 10
of 14
pro vyhledávání: '"D. A. Schecter"'
Publikováno v:
The Astrophysical Journal. 551:L185-L188
This Letter discusses waves in a rotating magnetized fluid layer, governed by "shallow-water" magnetohydrodynamics. Such waves likely exist in the solar tachocline, and we focus on this application. A dispersion relation is derived, giving two branch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7524c1d8608869f4428c14b68bebdd51
https://doi.org/10.1086/320027
https://doi.org/10.1086/320027
Autor:
D. A. Schecter, Daniel H. E. Dubin
Publikováno v:
Physical Review Letters. 83:2191-2194
The motion of self-trapped vortices on a background vorticity gradient is examined numerically and analytically. The vortices act to level the local background vorticity gradient. Conservation of momentum dictates that positive vortices (``clumps'')
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c49fbc287181b5fbd129c78f008bd9f
https://doi.org/10.1103/physrevlett.83.2191
https://doi.org/10.1103/physrevlett.83.2191
Publikováno v:
Physics of Fluids. 11:905-914
Vortex-in-cell simulations that numerically integrate the 2D Euler equations are compared directly to experiments on magnetized electron columns [K. S. Fine, A. C. Cass, W. G. Flynn, and C. F. Driscoll, “Relaxation of 2D turbulence to vortex crysta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0aa0e483b900319fc81bb2523870b2c
https://doi.org/10.1063/1.869961
https://doi.org/10.1063/1.869961
Publikováno v:
Physical Review Letters. 79:1479-1482
This paper discusses a 2D vortex merger for the particular case of a weak point vortex and an extended vortex of nearly circular cross section. A Hamiltonian analysis describes the interaction of the point vortex with surface waves on the extended vo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96c1be0944d8feec5660504abe6c56b3
https://doi.org/10.1103/physrevlett.79.1479
https://doi.org/10.1103/physrevlett.79.1479
Autor:
Susan Coppersmith, Onuttom Narayan, D. A. Schecter, Satya N. Majumdar, Thomas A. Witten, Chu-heng Liu, Sidney R. Nagel
Publikováno v:
Science. 269:513-515
Experimental observations and numerical simulations of the large force inhomogeneities present in stationary bead packs are presented. Forces much larger than the mean occurred but were exponentially rare. An exactly soluble model reproduced many asp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fff643e29d191390531550cb1f0da6a
https://doi.org/10.1126/science.269.5223.513
https://doi.org/10.1126/science.269.5223.513
Publikováno v:
Proceedings of the 5th Experimental Chaos Conference.
Magnetically confined electron columns evolve in (r, ) as essentially inviscid, incompressible 2D fluids with a single sign of vorticity. Turbulent initial states with 50–100 vortices relax due to vortex merger and filamentation, in general agreeme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1224e354b4241bfe5740d538ab7e70da
https://doi.org/10.1142/9789812811516_0037
https://doi.org/10.1142/9789812811516_0037
Autor:
Daniel H. E. Dubin, Thomas M. O'Neil, I. M. Lansky, C. F. Driscoll, D. A. Schecter, A. C. Cass
Publikováno v:
AIP Conference Proceedings.
The inviscid damping of an elliptical perturbation on a 2D vortex is examined experimentally and theoretically. The perturbation is generated by an impulse at the wall. Initially, the quadrupole moment (ellipticity) of the perturbation decays exponen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::802584c3f2ccb5a3659d856d1935e44f
https://doi.org/10.1063/1.1302109
https://doi.org/10.1063/1.1302109
Publikováno v:
The Astrophysical Journal. 556:L127-L127
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e259f32cccf91c3259f3576ea17b8f93
https://doi.org/10.1086/322738
https://doi.org/10.1086/322738
Publikováno v:
Physics of Fluids. 12:2397
The inviscid damping of an asymmetric perturbation on a two-dimensional circular vortex is examined theoretically, and with an electron plasma experiment. In the experiment, an elliptical perturbation is created by an external impulse. After the impu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6493e174218b7d283c10c3e001f445d
https://doi.org/10.1063/1.1289505
https://doi.org/10.1063/1.1289505
Publikováno v:
Product R&D. 11:461-463
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb886f39d1ceb139406089a2d0e7c853
https://doi.org/10.1021/i360044a021
https://doi.org/10.1021/i360044a021