Attempt to study Marangoni flow of low-Pr-number fluids using a liquid bridge of silver

2008 ◽  
Vol 41 (12) ◽  
pp. 2107-2111 ◽  
Author(s):  
Taketoshi Hibiya ◽  
Keisuke Nagafuchi ◽  
Suguru Shiratori ◽  
Noriyoshi Yamane ◽  
Shumpei Ozawa
Keyword(s):  
Liquid Bridge ◽  
Marangoni Flow

scholarly journals Particle Accumulation Structures in a 5 cSt Silicone Oil Liquid Bridge: New Data for the Preparation of the JEREMI Experiment

2021 ◽  
Vol 33 (2) ◽  
Author(s):  
Paolo Capobianchi ◽  
Marcello Lappa
Keyword(s):  
Liquid Bridge ◽  
Silicone Oil ◽  
Fluid Dynamic ◽  
Solid Particles ◽  
Critical Threshold ◽  
Marangoni Flow ◽  
Disk Radius ◽  
Carrier Fluid ◽  
Aspect Ratios ◽  
Time Periodic

AbstractSystems of solid particles in suspension driven by a time-periodic flow tend to create structures in the carrier fluid that are reminiscent of highly regular geometrical items. Within such a line of inquiry, the present study provides numerical results in support of the space experiments JEREMI (Japanese and European Research Experiment on Marangoni flow Instabilities) planned for execution onboard the International Space Station. The problem is tackled by solving the unsteady non-linear governing equations for the same conditions that will be established in space (microgravity, 5 cSt silicone oil and different aspect ratios of the liquid bridge). The results reveal that for a fixed supporting disk radius, the dynamics are deeply influenced by the height of the liquid column. In addition to its expected link with the critical threshold for the onset of instability (which makes Marangoni flow time-periodic), this geometrical parameter can have a significant impact on the emerging waveform and therefore the topology of particle structures. While for shallow liquid bridges, pulsating flows are the preferred mode of convection, for tall floating columns the dominant outcome is represented by rotating fluid-dynamic disturbance. In the former situation, particles self-organize in circular sectors bounded internally by regions of particle depletion, whereas in the latter case, particles are forced to accumulate in a spiral-like structure. The properties of some of these particle attractors have rarely been observed in earlier studies concerned with fluids characterized by smaller values of the Prandtl number.

Marangoni flow in half-zone liquid bridge of molten tin under ramped temperature difference

2005 ◽  
Vol 280 (3-4) ◽  
pp. 620-631 ◽  
Author(s):  
K. Li ◽  
S. Yasuhiro ◽  
N. Imaishi ◽  
S. Yoda
Keyword(s):  
Temperature Difference ◽  
Liquid Bridge ◽  
Marangoni Flow

Two-directional observation of solid–melt interface fluctuation induced by Marangoni flow in a silicon liquid bridge

2002 ◽  
Vol 235 (1-4) ◽  
pp. 55-59 ◽  
Author(s):  
Masanobu Sumiji ◽  
Shin Nakamura ◽  
Taketoshi Hibiya
Keyword(s):  
Liquid Bridge ◽  
Marangoni Flow ◽  
Interface Fluctuation

Marangoni flow in liquid bridge at high non-dimensional transport numbers

1993 ◽  
Author(s):  
R. FORTEZZA ◽  
D. CASTAGNOLO ◽  
G. DESIDERIO ◽  
Z. TANG ◽  
R. MONTI
Keyword(s):  
Liquid Bridge ◽  
Transport Numbers ◽  
Marangoni Flow

Numerical simulation of oscillatory Marangoni flow in half-zone liquid bridge of low Prandtl number fluid

2001 ◽  
Vol 230 (1-2) ◽  
pp. 164-171 ◽  
Author(s):  
N. Imaishi ◽  
S. Yasuhiro ◽  
Y. Akiyama ◽  
S. Yoda
Keyword(s):  
Numerical Simulation ◽  
Prandtl Number ◽  
Liquid Bridge ◽  
Marangoni Flow

Magnetic effects on non-linear marangoni flow in plane liquid bridge

1997 ◽  
Vol 41 (2) ◽  
pp. 113-120 ◽  
Author(s):  
A. Viviani ◽  
C. Golia ◽  
M. Cioffi
Keyword(s):  
Liquid Bridge ◽  
Marangoni Flow ◽  
Magnetic Effects ◽  
Non Linear

scholarly journals Oscillatory Marangoni flow in half-zone liquid bridge of molten tin

2004 ◽  
Vol 266 (1-3) ◽  
pp. 152-159 ◽  
Author(s):  
S. Yasuhiro ◽  
K. Li ◽  
N. Imaishi ◽  
Y. Akiyama ◽  
H. Natsui ◽  
...  
Keyword(s):  
Liquid Bridge ◽  
Marangoni Flow

Optical observation of solid–melt interface fluctuation due to Marangoni flow in a silicon liquid bridge

2001 ◽  
Vol 223 (4) ◽  
pp. 503-511 ◽  
Author(s):  
Masanobu Sumiji ◽  
Shin Nakamura ◽  
Takeshi Azami ◽  
Taketoshi Hibiya
Keyword(s):  
Liquid Bridge ◽  
Optical Observation ◽  
Marangoni Flow ◽  
Interface Fluctuation
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