scholarly journals Three-dimensional Numerical Simulation of Thermal and Solutal Marangoni Convection in a Liquid Bridge under Zero-gravity Field

2012 ◽  
Vol 10 (ists28) ◽  
pp. Ph_15-Ph_20
Author(s):  
Hisashi MINAKUCHI ◽  
Youhei TAKAGI ◽  
Yasunori OKANO ◽  
Takehiro NOSOKO ◽  
Satoru GIMA ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Gravity Field ◽  
Liquid Bridge ◽  
Marangoni Convection ◽  
Three Dimensional ◽  
Zero Gravity

Numerical Simulation of Touchdown/Takeoff Hysterisis of Spherical Pad Slider by Considering the Liquid Bridge Between the Slider and Lubricant-Disk

2008 ◽  
Author(s):  
Hui Li ◽  
Jianhua Li ◽  
Junguo Xu ◽  
Yuki Shimizu ◽  
Kyosuke Ono ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Liquid Bridge ◽  
3D Model ◽  
Three Dimensional ◽  
Disk Surface ◽  
Force Model ◽  
Disk Interface ◽  
Meniscus Force ◽  
Geometry Model ◽  
Balance State

This work carries on a numerical simulation of the touchdown/takeoff (TD/TO) hysterisis of the spherical pad slider. It numerically studies the meniscus bridge’s formation and meniscus force interaction between the spherical pad and lubricant over the disk surface. It proposes a geometry model for the lubricant bridge, and correspondingly, a force model for the meniscus force acting on the spherical pad slider due to the lubricant bridge. By solving the liquid balance state at the meniscus boundary, it obtains the geometry of the liquid bridge. A parametric study is done to study the effects of the geometry of spherical pad, Hamaker constant of lubricant-disk, and surface energy of lubricant on the formation of the liquid bridge. The overflow phenomenon is analyzed to find out the acceptable dimension of the spherical pad design. Moreover, a three-dimensional (3D) model of spherical pad slider/disk interface is built to study the steady-state flying of the spherical pad slider. The different parameters are analyzed to study their effects on the TD/TO hysteresis.

Global Linear Stability Analysis of Thermo-solutal Marangoni Convection in a Liquid Bridge Under Zero Gravity

2020 ◽  
Vol 32 (4) ◽  
pp. 729-735
Author(s):  
Radeesha Laknath Agampodi Mendis ◽  
Atsushi Sekimoto ◽  
Yasunori Okano ◽  
Hisashi Minakuchi ◽  
Sadik Dost
Keyword(s):  
Stability Analysis ◽  
Linear Stability ◽  
Linear Stability Analysis ◽  
Liquid Bridge ◽  
Marangoni Convection ◽  
Zero Gravity

scholarly journals A Numerical Study on the Exact Onset of Flow Instabilities in Thermo-Solutal Marangoni Convection Driven by Opposing Forces in a Half-Zone Liquid Bridge under Zero Gravity

2021 ◽  
Vol 54 (8) ◽  
pp. 424-430
Author(s):  
Radeesha Laknath ◽  
Agampodi Mendis ◽  
Atsushi Sekimoto ◽  
Yasunori Okano ◽  
Hisashi Minakuchi ◽  
...  
Keyword(s):  
Liquid Bridge ◽  
Marangoni Convection ◽  
Numerical Study ◽  
Flow Instabilities ◽  
Zero Gravity
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