Zobrazeno 1 - 10
of 720
pro vyhledávání: '"SPIEGEL, E. A."'
Publikováno v:
Phys. Rev. Lett. 115, 134501 (2015)
We simulate three-dimensional, horizontally periodic Rayleigh-B\'enard convection between free-slip horizontal plates, rotating about a distant horizontal axis. When both the temperature difference between the plates and the rotation rate are suffici
Externí odkaz:
http://arxiv.org/abs/1501.07308
Autor:
Spiegel, E. A.
The passage from kinetic theory to fluid dynamics as discussed by Hilbert has perplexed Uhlenbeck. Herein, I try to smooth over the discord.
Comment: Invited talk at the "hommage a Michel Henon" conference held at the "Institut Henri Poincare" P
Comment: Invited talk at the "hommage a Michel Henon" conference held at the "Institut Henri Poincare" P
Externí odkaz:
http://arxiv.org/abs/1411.4934
Autor:
Brandenburg, A., Spiegel, E. A.
Publikováno v:
Astron. Nachr. 329, 351-358 (2008)
We introduce on/off intermittency into a mean field dynamo model by imposing stochastic fluctuations in either the alpha effect or through the inclusion of a fluctuating electromotive force. Sufficiently strong small scale fluctuations with time scal
Externí odkaz:
http://arxiv.org/abs/0801.2156
Autor:
Thieberger, R., Spiegel, E. A.
We analyze examples of projected two dimensional fractals for the case where the objects studied have a Schechter luminosity function. Our results indicate that two dimensional catalogues of sources could be of value in detecting the effects of lumin
Externí odkaz:
http://arxiv.org/abs/astro-ph/0204485
Autor:
Chen, X., Spiegel, E. A.
Publikováno v:
Mon.Not.Roy.Astron.Soc.323:865,2001
Viscous resistance to changes in the volume of a gas arises when different degrees of freedom have different relaxation times. Collisions tend to oppose the resulting departures from equilibrium and, in so doing, generate entropy. Even for a classica
Externí odkaz:
http://arxiv.org/abs/astro-ph/0102022
Publikováno v:
Physics of Fluids, vol. 11, pp. 2280-2287
In the problem of planetary formation one seeks a mechanism to gather small solid particles together into larger accumulations of solid matter. Here we describe a scenario in which turbulence mediates this process by aggregating particles into anticy
Externí odkaz:
http://arxiv.org/abs/astro-ph/9810336
If we treat the galaxies in published redshift catalogues as point sets, we may determine the generalized dimensions of such sets by standard means, outlined here. For galaxy separations up to about 5 Mpc, we find the dimensions of the galaxy set to
Externí odkaz:
http://arxiv.org/abs/astro-ph/9809116
Publikováno v:
Annals of the NY Academy of Sciences, 867, 93-108 (1998)
We study the longitudinal instabilities of two interpenetrating fluids interacting only through gravity. When one of the constituents is of relatively low density, it is possible to have a band of unstable wave numbers well separated from those invol
Externí odkaz:
http://arxiv.org/abs/astro-ph/9807310