نتایج جستجو برای: taylor couette

تعداد نتایج: 21289  

Journal: :Physical review letters 2012
Sander G Huisman Dennis P M van Gils Siegfried Grossmann Chao Sun Detlef Lohse

The flow structure of strongly turbulent Taylor-Couette flow with Reynolds numbers up to Re(i)=2×10(6) of the inner cylinder is experimentally examined with high-speed particle image velocimetry (PIV). The wind Reynolds numbers Re(w) of the turbulent Taylor-vortex flow is found to scale as Re(w)∝Ta(1/2), exactly as predicted by Grossmann and Lohse [Phys. Fluids 23, 045108 (2011).] for the ultim...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2008
M Heise J Abshagen D Küter K Hochstrate G Pfister Ch Hoffmann

We present a type of spiral vortex state that appears from a supercritical Hopf bifurcation below the linear instability of circular Couette flow in a Taylor-Couette system with rigid end plates. These spirals have been found experimentally as well as numerically as "pure" states but also coexist with "classical" spirals (or axially standing waves for smaller systems) which typically appear fro...

Journal: :Physical Review Letters 1996

1998
Steven T. Wereley Richard M. Lueptow

In rotating filtration, which is based on supercritical cylindrical Couette flow with a rotating porous inner cylinder, the motion of particles in the suspension depends on both centrifugal sedimentation and transport due to the vortical motion of Taylor vortices. We have simulated the motion of dilute, rigid, spherical particles in Taylor Couette flow using computational particle tracking in a...

Journal: :Journal of Physics: Conference Series 2008

Journal: :Annual Review of Fluid Mechanics 2016

Journal: :Journal of Physics: Conference Series 2008

Journal: :Journal of Fluid Mechanics 2021

A series of experiments on stratified Taylor–Couette flow in short aspect ratio wide-gap annuli found an intriguing and not-well-understood dynamics: nonlinear coherent structures appearing disappearing periodically, along with density layering reminiscent staircase profiles. detailed numerical study is presented the dynamics near onset instability this setting, which explains most characterist...

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