Numerical investigation of instability and transition to chaos in electro-convection of dielectric liquids between concentric cylinders

2021 ◽  
Vol 33 (4) ◽  
pp. 044112
Author(s):  
Junyu Huang ◽  
Qi Wang ◽  
Yifei Guan ◽  
Zhonglin Du ◽  
R. Deepak Selvakumar ◽  
...  
Keyword(s):  
Numerical Investigation ◽  
Dielectric Liquids ◽  
Transition To Chaos ◽  
Concentric Cylinders

Numerical Investigation of Electrohydrodynamic Plumes for Locally Enhanced Cooling in Dielectric Liquids

2015 ◽  
Vol 51 (1) ◽  
pp. 669-678 ◽  
Author(s):  
Jian Wu ◽  
Philippe Traore ◽  
Christophe Louste ◽  
Lucian Dascalescu ◽  
Fang-Bao Tian ◽  
...  
Keyword(s):  
Numerical Investigation ◽  
Dielectric Liquids

Two-Dimensional Numerical Investigation of Oscillatory Shear-Driven Flows in Slip Flow Regime between Two Microscale Concentric Cylinders

2014 ◽  
Vol 704 ◽  
pp. 299-304 ◽  
Author(s):  
Hossein Asadi
Keyword(s):  
Shear Rate ◽  
Numerical Investigation ◽  
Slip Flow ◽  
Two Dimensional ◽  
Layer Depth ◽  
Concentric Cylinders ◽  
Scientists And Engineers ◽  
Slip Flow Regime ◽  
Shear Driven Flows ◽  
Phase Angles

Shear-driven flows in microscopic systems are of great interest among scientists and engineers nowadays. In this document, shear-driven flow between two concentric micro-cylinders was studied in two different configurations in which the second one includes a general form of oscillation of the walls. In both configurations, effects of slip condition on velocity and shear rate profiles and torque required to rotate the system are investigated in comparison to no-slip conditions. For oscillatory configuration, in addition to studying aforementioned effects, the effects of variation in frequency values of the oscillating walls on stokes layer depth and phase angles are studied.

Natural convection in a horizontal concentric cylindrical annulus: oscillatory flow and transition to chaos

1998 ◽  
Vol 375 ◽  
pp. 179-202 ◽  
Author(s):  
G. LABONIA ◽  
G. GUJ
Keyword(s):  
Oscillatory Flow ◽  
Thermal Field ◽  
Hot Wire ◽  
Qualitative Information ◽  
Interferometric Method ◽  
Chaotic Flow ◽  
Cylindrical Annulus ◽  
Transition To Chaos ◽  
Concentric Cylinders ◽  
Steady Laminar

An experimental study of transition from steady laminar to chaotic flow in a horizontal annulus between concentric cylinders is conducted for 0.90×105[les ]RaL[les ]3.37×105. Qualitative information on the averaged thermal field is obtained by an interferometric method, whereas the kinematics are visualized by using smoke lines. The transition from steady to unsteady mono- and multi-periodic regimes is accurately studied by a CTA and CCA combined hot-wire technique. Different data analyses are performed in order to differentiate the forms of transition.

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