Mochizuki & Murata Lab. / Tokyo University of Agriculture and Technology
Tokyo University
of Agriculture and Technology
Thermal Fluids Engineering Lab.,
Dept. of Mechanical Systems Engineering Murata Lab.
2-24-16 Naka-cho Koganei-city
Tokyo, Japan, 184-8588
[MAIL]
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[AtMark]mmlab.mech.tuat.ac.jp
Liquid Droplet Motion on Solid Surface with
Temperature Gradient (Application to Material Collection/Removal System in
Micro-Gravity Environment)
When a wall has a temperature gradient, lower temperature gives higher
surface tension, and therefore the surface tension of the droplet on the
wall becomes out of balance. The force due to the imbalance of the surface
tension is called "the Marangoni force", and it is known that
the Marangoni force causes the droplet motion on the solid wall with temperature
gradient. Droplet velocity depends on the droplet size, fluid properties
(surface tension, viscosity, thermal conductivity, etc.), and chemical/physical
surface characters (roughness, wettability). We are investigating this
phenomena both experimentally and numerically. In the numerical analysis,
both the continuum and molecular dynamics approaches are used.
Droplet motion on the wall with temperature gradient numerically simulated
by using CIP method (continuum approach) [1].
