Turbulence Fluide et Plasma-en Turbulence Fluide et Plasma-fr
[Turbulence Fluide et Plasma] Out of equilibrium Statistic Physics
article rubrique
Sunday 28 November 2010
traduction
The Hanle effect in a random magnetic field. Dependence of the polarization on statistical properties of the magnetic field
Frisch, H., Anusha, L.S., Sampoorna, M. and Nagendra, K.N.
Context. The Hanle effect is used to determine weak turbulent magnetic fields in the solar atmosphere, usually assuming that the angular distribution is isotropic, the magnetic field (...) Read the whole article
Sunday 28 November 2010
traduction
Vortex-Nucleating Zeeman Resonance in Axisymmetric Rotating Bose-Einstein Condensates
G. Reinisch
By use of the Larmor equivalence between uniform rotation and a magnetic field, we consider in the strong-interaction Thomas-Fermi regime the single centered vortex as the first (...) Read the whole article
Sunday 28 November 2010
traduction
Metastability of persistent currents in trapped gases of atoms
Kärkkäinen, K., Christensson, J., Reinisch, G., Kavoulakis, G.M. and Reimann, S.M.
We examine the conditions that give rise to metastable, persistent currents in a trapped Bose-Einstein condensate. A necessary condition for the stability of persistent currents is (...) Read the whole article
Sunday 28 November 2010
traduction
Radial action-phase quantization in Bose Einstein condensates
G. Reinisch
The 2D radial stationary nonlinear Schroedinger equation yields a new action-phase quantization of energy, in contrast with the linear case where the energy levels are degenerated (...) Read the whole article
Sunday 28 November 2010
traduction
Genesis of d’Alembert’s paradox and analytical elaboration of the drag problem
Grimberg, G., Pauls, W. and Frisch, U
We show that the issue of the drag exerted by an incompressible fluid on a body in uniform motion has played a major role in the early development of fluid dynamics. In 1745 Euler (...) Read the whole article
Sunday 28 November 2010
traduction
Complex-space singularities of 2D Euler flow in Lagrangian coordinates
Matsumoto, T., Bec, J. and Frisch, U
We show that, for 2D space-periodic incompressible flow, the solution can be evaluated numerically in Lagrangian coordinates with the same accuracy that is achieved in standard (...) Read the whole article
Sunday 28 November 2010
traduction
Extended Self Similarity works for the Burgers equation and why
Chakraborty, S., Frisch, U. and Ray, S.S
Extended self-similarity (ESS), a procedure that remarkably extends the range of scaling for structure functions in Navier–Stokes turbulence and thus allows improved determination of (...) Read the whole article