Numerical Simulation of Sterilization Processes for Shear‐Thinning Food in Taylor‐Couette Flow Systems

2019 ◽  
Vol 42 (4) ◽  
pp. 859-866 ◽  
Author(s):  
Hayato Masuda ◽  
Robert Hubacz ◽  
Makoto Shimoyamada ◽  
Naoto Ohmura
Keyword(s):  
Numerical Simulation ◽  
Couette Flow ◽  
Shear Thinning ◽  
Flow Systems ◽  
Taylor Couette ◽  
Taylor Couette Flow

Numerical Simulation of Taylor Couette Flow in Bioreactor

2011 ◽  
Vol 236-238 ◽  
pp. 1000-1004
Author(s):  
Li Ye ◽  
Zheng Ming Tong ◽  
Jai Lei Lu ◽  
Kai Zhu ◽  
Chao Li
Keyword(s):  
Numerical Simulation ◽  
Free Surface ◽  
Flow Field ◽  
Couette Flow ◽  
Bottom Wall ◽  
Simplified Model ◽  
Middle Position ◽  
Whole Space ◽  
Taylor Couette ◽  
Taylor Couette Flow

Taylor Couette flow in bioreactor at different Re values is researched numerically by means of establishing a simplified model. Numerical results indicate that vortex appears earlier in the vicinity of bottom wall than in the vicinity of top free surface. As Re number increases, vortexes generate from both ends towards middle area of flow field and will fill the whole space when critical Re value is reached. Although all vortexes look the same in structure, intensities of them are widely divergent. The strength of vortex at bottom wall is more intensive than that at top free surface, while the vortex at middle position is the weakest.

scholarly journals Numerical simulation of bubble dispersion in turbulent Taylor-Couette flow

2014 ◽  
Vol 26 (4) ◽  
pp. 043304 ◽  
Author(s):  
A. Chouippe ◽  
E. Climent ◽  
D. Legendre ◽  
C. Gabillet
Keyword(s):  
Numerical Simulation ◽  
Couette Flow ◽  
Bubble Dispersion ◽  
Taylor Couette ◽  
Taylor Couette Flow

Effects of Shear Thinning on Taylor-Couette Flow: A Model for Synovial Fluid Flow

2006 ◽  
Author(s):  
Nariman Ashrafi
Keyword(s):  
Couette Flow ◽  
Shear Thinning ◽  
Taylor Number ◽  
Taylor Vortex ◽  
Narrow Gap ◽  
Shear Thinning Fluids ◽  
Wide Range ◽  
Taylor Couette ◽  
The Stability ◽  
Taylor Couette Flow

The effect of shear thinning on the stability of the Taylor-Couette flow (TCF) is explored for a Carreau-Bird fluid in the narrow-gap limit to simulate journal bearings in general. Also considered is the changing eccentricity to cover a wide range of applied situations such as bearings and even articulation of human joints. Here, a low-order dynamical system is obtained from the conservation of mass and momentum equations. In comparison with the Newtonian system, the present equations include additional nonlinear coupling in the velocity components through the viscosity. It is found that the critical Taylor number, corresponding to the loss of stability of the base (Couette) flow becomes lower s the shear-thinning effect increases. Similar to Newtonian fluids, there is an exchange of stability between the Couette and Taylor vortex flows. However, unlike the Newtonian model, the Taylor vortex cellular structure loses its stability in turn as the Taylor number reaches a critical value. At this point, A Hopf bifurcation emerges, which exists only for shear-thinning fluids. Variation of stresses in the narrow gap has been evaluated with significant applications in the non-Newtonian lubricant.

Numerical Simulation of Stratified Taylor-Couette Flow

2006 ◽  
Vol 30 (7) ◽  
pp. 630-637
Author(s):  
Jong-Yeon Hwang ◽  
Kyung-Soo Yang ◽  
Dong-Woo Kim
Keyword(s):  
Numerical Simulation ◽  
Couette Flow ◽  
Taylor Couette ◽  
Taylor Couette Flow
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