scholarly journals Nonlinear and detuning effects of the nutation angle in precessionally forced rotating cylinder flow

2016 ◽  
Vol 1 (2) ◽  
Author(s):  
Juan M. Lopez ◽  
Francisco Marques
Keyword(s):  
Rotating Cylinder ◽  
Nutation Angle ◽  
Cylinder Flow

scholarly journals Triadic resonances in precessing rapidly rotating cylinder flows

2015 ◽  
Vol 778 ◽  
Author(s):  
T. Albrecht ◽  
H. M. Blackburn ◽  
J. M. Lopez ◽  
R. Manasseh ◽  
P. Meunier
Keyword(s):  
Rotating Cylinder ◽  
Direct Numerical Simulations ◽  
Mode Shapes ◽  
Resonance Model ◽  
Rapid Rotation ◽  
Nutation Angle ◽  
Resonant Instability ◽  
Theoretical Predictions ◽  
Long Time ◽  
Good Agreement

Direct numerical simulations of flows in cylinders subjected to both rapid rotation and axial precession are presented and analysed in the context of a stability theory based on the triadic resonance of Kelvin modes. For a case that was chosen to provide a finely tuned resonant instability with a small nutation angle, the simulations are in good agreement with the theory and previous experiments in terms of mode shapes and dynamics, including long-time-scale regularization of the flow and recurrent collapses. Cases not tuned to the most unstable triad, but with the nutation angle still small, are also in quite good agreement with theoretical predictions, showing that the presence of viscosity makes the physics of the triadic-resonance model robust to detuning. Finally, for a case with $45^{\circ }$ nutation angle for which it has been suggested that resonance does not occur, the simulations show that a slowly growing triadic resonance predicted by theory is in fact observed if sufficient evolution time is allowed.

scholarly journals Axisymmetric Hopf bifurcation in a free-surface rotating cylinder flow

2008 ◽  
Vol 50 ◽  
pp. 251 ◽  
Author(s):  
Stuart James Cogan ◽  
Gregory J Sheard ◽  
Kris Ryan
Keyword(s):  
Free Surface ◽  
Hopf Bifurcation ◽  
Rotating Cylinder ◽  
Cylinder Flow

scholarly journals Rapidly rotating cylinder flow with an oscillating sidewall

2014 ◽  
Vol 89 (1) ◽  
Author(s):  
Juan M. Lopez ◽  
Francisco Marques
Keyword(s):  
Rotating Cylinder ◽  
Cylinder Flow

Viscosity Evaluation of Multi-phases Flux by Rotating Cylinder Method

2009 ◽  
Vol 95 (12) ◽  
pp. 807-812 ◽  
Author(s):  
Sohei Sukenaga ◽  
Shinichiro Haruki ◽  
Yoshinori Yamaoka ◽  
Noritaka Saito ◽  
Kunihiko Nakashima
Keyword(s):  
Rotating Cylinder ◽  
Cylinder Method

Vibrational dynamics of a light body in a liquid-filled rotating cylinder

2008 ◽  
Vol 43 (1) ◽  
pp. 9-19
Author(s):  
V. G. Kozlov ◽  
N. V. Kozlov
Keyword(s):  
Rotating Cylinder ◽  
Vibrational Dynamics

Mixed convection in a PCM filled cavity under the influence of a rotating cylinder

Solar Energy ◽  
2020 ◽  
Vol 200 ◽  
pp. 61-75 ◽  
Author(s):  
Fatih Selimefendigil ◽  
Hakan F. Öztop
Keyword(s):  
Mixed Convection ◽  
Rotating Cylinder
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