scholarly journals Instabilities of thermocapillary-buoyant-Coriolis flow of medium Prandtl fluid in a slowly rotating annular pool

2022 ◽  
Vol 130 ◽  
pp. 105801
Author(s):  
Han-Ming Li ◽  
Lin Feng ◽  
Wan-Yuan Shi ◽  
Michael K. Ermakov
Keyword(s):  
Annular Pool

Thermocapillary convection in a differentially heated annular pool for moderate Prandtl number fluid

2004 ◽  
Vol 43 (6) ◽  
pp. 587-593 ◽  
Author(s):  
You-Rong Li ◽  
Lan Peng ◽  
Shuang-Ying Wu ◽  
Dan-Ling Zeng ◽  
Nobuyuki Imaishi
Keyword(s):  
Prandtl Number ◽  
Thermocapillary Convection ◽  
Annular Pool ◽  
Moderate Prandtl Number Fluid

Numerical Simulation of Thermocapillary Convection in an Annular Pool of Silicone Oil Heated From Inner Wall

2007 ◽  
Author(s):  
Wanyuan Shi ◽  
Nobuyuki Oshima ◽  
Nobuyuki Imaishi
Keyword(s):  
Numerical Simulation ◽  
Critical Temperature ◽  
Temperature Gradient ◽  
Numerical Simulations ◽  
Temperature Difference ◽  
Significant Influence ◽  
Thermocapillary Convection ◽  
Silicone Oil ◽  
Annular Pool ◽  
Surface Temperature Gradient

Thermocapillary convection in a shallow annular pool (depth d = 1 mm) of silicone oil (0.65 cSt, Pr = 6.7), heated from the inner wall, is investigated by numerical simulations. Under a fixed value of temperature difference between the outer and inner walls, surface temperature gradient in the inner heated pool is about 10% higher than that in the outer heated pool. Accordingly, the critical temperature difference for the incipience of HTW (ΔTc = 4.58K) is smaller than that (ΔTc = 5.0K) in the outer heated pool. Numerical simulations indicate that two groups of HTW, propagating in opposite azimuthal directions to each other, coexist and produce interference patterns in the inner heated pool. Rotation of the pool around its axis gives no significant influence on the behavior of HTW in the inner heated pool. The characteristics of HTW are discussed in contrast with those in the outer heated pool.

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