Journal ArticleDOI
A new flow regime in a Taylor–Couette flow
Tee Tai Lim,Y. T. Chew,Qing Xiao +2 more
TLDR
In this paper, a Taylor-Couette flow with the outer cylinder is stationary and the inner cylinder is accelerated linearly from rest to a desired speed was investigated. And the results showed that when the acceleration (dRe/dt) is higher than a critical value of about 2.2Abstract:
In this Brief Communication, we report a new finding on a Taylor–Couette flow in which the outer cylinder is stationary and the inner cylinder is accelerated linearly from rest to a desired speed. The results show that when the acceleration (dRe/dt) is higher than a critical value of about 2.2 s−1, there exists a new flow regime in which the flow pattern shows remarkable resemblance to regular Taylor vortex flow but is of shorter wavelength. However, when the acceleration is lower than 2.2 s−1, a wavy flow is found to occur for the same Reynolds number range. To our knowledge, this is probably the first time that such a phenomenon has been observed. For completeness, the case of a decelerating cylinder is also investigated, and the results are found to be almost the same.read more
Citations
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Journal ArticleDOI
Two-phase Couette–Taylor flow: Arrangement of the dispersed phase and effects on the flow structures
TL;DR: In this paper, the authors investigated the mutual interactions between a continuous and a dispersed phase (noncondensable or condensable) in the well-known Couette-Taylor flow between two concentric cylinders at low Reynolds numbers, where the outer cylinder is immobilized.
Journal ArticleDOI
Biological effects of dynamic shear stress in cardiovascular pathologies and devices
Gaurav Girdhar,Danny Bluestein +1 more
TL;DR: This review addresses limitations to replicate such dynamic flow conditions in vitro and introduces the idea of modified in vitro devices, one of which is developed in the authors’ laboratory, with dynamic capabilities to investigate the aforementioned effects in greater detail.
Journal ArticleDOI
Understanding turbulent free-surface vortex flows using a Taylor-Couette flow analogy
TL;DR: Using Rayleigh’s stability criterion, it is analytically show that a wall bounded free-surface vortex can indeed become unstable due to a centrifugal driving force in a similar manner to the Taylor-Couette flow.
Journal ArticleDOI
A note on power-law scaling in a Taylor-Couette flow
Tee Tai Lim,Kai Soo Tan +1 more
TL;DR: In this article, the same authors performed simultaneous flow visualization and high precision torque measurements of the same flow configuration using a Haake RS-75 Rheometer to establish if this is also true in the lower Reynolds number range (Re<800).
Journal ArticleDOI
Mechanisms for the transition to waviness for Taylor vortices
TL;DR: In this paper, a weakly nonlinear amplitude equation of the saturated Taylor vortices developing in a Taylor-Couette cell with a rotating inner cylinder and a fixed outer one is investigated using Floquet analysis.
References
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Journal ArticleDOI
Stability of a Viscous Liquid Contained between Two Rotating Cylinders
TL;DR: In this paper, it was shown that if the velocity of the fluid exceeds a certain limit, depending on the viscosity of the viscous fluid and the configuration of the boundaries, the steady motion breaks down and eddying flow sets in.
Journal ArticleDOI
Flow regimes in a circular Couette system with independently rotating cylinders
TL;DR: In this paper, a flow visualization and spectral studies of flow between concentric independently rotating cylinders have revealed a surprisingly large variety of different flow states, including Taylor vortices, wavy vortice, modulated wavy vectors, outflow boundaries and internal waves.
Journal ArticleDOI
Transition in circular couette flow
TL;DR: In this article, two distinct kinds of transition have been identified in Couette flow between rotating cylinders: the Taylor motion (periodic in the axial direction) and a pattern of travelling waves in the circumferential direction.
Book
Bénard cells and Taylor vortices
TL;DR: The theory of surface tension driven Benard convection and Rayleigh's stability criterion was proposed by G. Taylor as discussed by the authors, who also proposed a nonlinear theory of Taylor vortex flow.