Experimental study on thermocapillary convection of binary mixture in a shallow annular pool with radial temperature gradient

Yu, Jiajia; Ruan, Dike; Li, You–Rong; Chen, Jie-Chao

doi:10.1016/j.expthermflusci.2014.10.015

Cited by 39 publications

(7 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…tending to the limit value of two. This tendency was found experimentally by [30]. Note that Yu et al defined the aspect ratio as the inverse of the one used in this paper .…”

Section: Discussionsupporting

confidence: 78%

Influence of geometrical parameters on the linear stability of a Bénard-Marangoni problem

2016

View full text Add to dashboard Cite

A linear stability analysis of a thin liquid film flowing over a plate is performed. The analysis is performed in an annular domain when momentum diffusivity and thermal diffusivity are comparable (relatively low Prandtl number, Pr=1.2). The influence of the aspect ratio (Γ) and gravity, through the Bond number (Bo), in the linear stability of the flow are analyzed together. Two different regions in the Γ-Bo plane have been identified. In the first one the basic state presents a linear regime (in which the temperature gradient does not change sign with r). In the second one, the flow presents a nonlinear regime, also called return flow. A great diversity of bifurcations have been found just by changing the domain depth d. The results obtained in this work are in agreement with some reported experiments, and give a deeper insight into the effect of physical parameters on bifurcations.

show abstract

“…tending to the limit value of two. This tendency was found experimentally by [30]. Note that Yu et al defined the aspect ratio as the inverse of the one used in this paper .…”

Section: Discussionsupporting

confidence: 78%

Influence of geometrical parameters on the linear stability of a Bénard-Marangoni problem

2016

View full text Add to dashboard Cite

show abstract

“…Fig. 5 depicts the variation of the critical thermal capillary Reynolds number (Re Tc ) with the aspect ratio e. The experimental results obtained with the infrared technique in our previous work [32] are also shown in Fig. 5.…”

Section: Critical Condition For Flow Transitionmentioning

confidence: 88%

Three-dimensional thermocapillary–buoyancy flow of a binary mixture with Soret effect in a shallow annular pool

et al. 2015

International Journal of Heat and Mass Transfer

Self Cite

View full text Add to dashboard Cite

“…When both the numerical accuracy and the computational expense are taken into account, the grid of 52 R Â 52 Z Â 180 h is chosen for all cases. On the other hand, the code version for 3D numerical simulation of thermocapillary convection has been verified in the previous papers [12,[16][17][18][36][37][38].…”

Section: Calculation Conditions and Numerical Methodsmentioning

confidence: 63%

“…Chen et al [16] and Yu et al [17] carried out the numerical simulation to analyze the physical mechanism of the hydrothermal wave formation for the low (Pr = 0.011) and moderate (Pr = 6.7) Prandtl number fluids in an annular liquid pool. What's more, some scholars have experimentally observed the stationary longitudinal roll pattern and the HTWs in an annular pool [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Flow pattern transition and destabilization mechanism of thermocapillary convection for low Prandtl number fluid in a deep annular pool with surface heat dissipation

Zhang

et al. 2018

International Journal of Heat and Mass Transfer

Self Cite

View full text Add to dashboard Cite

In order to understand clearly the flow pattern transition and the destabilization mechanism of thermocapillary convection for low Prandtl number fluids in a deep annular pool with surface heat dissipation, we carried out a series of three-dimensional numerical simulations by using the finite volume method. The radius ratio and the aspect ratio of an annular pool are respectively fixed at 0.5 and 1.0. Prandtl number of the working fluid is 0.011. Because the total heat dissipation coefficient on the free surface for low Prandtl fluids is small, Biot number is varied from 0 to 1.0. Results indicate that thermocapillary convection experiences the transitions from axisymmetric steady state flow into three-dimensional steady flow, and then into three-dimensional oscillation flow with the increase of Marangoni number. The critical Marangoni number of flow pattern transition decreases slightly with the increase of Biot number, and the maximum temperature and velocity fluctuations appear near the lower part of outer wall. The azimuthal temperature fluctuation on the free surface gradually shrinks to the inner wall, and the temperature fluctuation region decreases. However, it remains almost unchanged near the bottom of the annular pool, but the fluctuation amplitude increases.

show abstract

Experimental study on thermocapillary convection of binary mixture in a shallow annular pool with radial temperature gradient

Cited by 39 publications

References 36 publications

Influence of geometrical parameters on the linear stability of a Bénard-Marangoni problem

Influence of geometrical parameters on the linear stability of a Bénard-Marangoni problem

Three-dimensional thermocapillary–buoyancy flow of a binary mixture with Soret effect in a shallow annular pool

Flow pattern transition and destabilization mechanism of thermocapillary convection for low Prandtl number fluid in a deep annular pool with surface heat dissipation

Contact Info

Product

Resources

About