Dynamics of inertial particles in a turbulent von Kármán flow
نویسندگان
چکیده
منابع مشابه
Slow dynamics in a turbulent von Kármán swirling flow.
An experimental study of a turbulent von Kármán flow in a cylinder is presented. The mean flow is stationary up to a Reynolds number Re=10(4) where a bifurcation takes place. The new regime breaks some symmetries of the problem and becomes time dependent because of equatorial vortices moving with a precession movement. In the exact counterrotating case, a bistable regime appears and spontaneous...
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We experimentally characterize the fluctuations of the nonhomogeneous nonisotropic turbulence in an axisymmetric von Kármán flow. We show that these fluctuations satisfy relations, issued from the Euler equation, which are analogous to classical fluctuation-dissipation relations in statistical mechanics. We use these relations to estimate statistical temperatures of turbulence.
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ژورنال
عنوان ژورنال: Journal of Fluid Mechanics
سال: 2011
ISSN: 0022-1120,1469-7645
DOI: 10.1017/s0022112010005690