Computational analysis of surface-tension-driven coating-defect flow
نویسندگان
چکیده
منابع مشابه
Flow rate analysis of a surface tension driven passive micropump.
A microfluidic passive pumping method relying on surface tension properties is investigated and a physical model is developed. When a small inlet drop is placed on the entrance of a microfluidic channel it creates more pressure than a large output drop at the channel exit, causing fluid flow. The behavior of the input drop occurs in two characteristic phases. An analytical solution is proposed ...
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We consider an inviscid fluid, initially at rest inside a wedge, bounded by one free surface and one solid surface. When t = 0, we allow the contact angle to change discontinuously, which leads the free surface to recoil under the action of surface tension. As noted by Keller and Miksis [SIAM J. Appl. Math., 43 (1983), pp. 268–277], a similarity scaling is available, with lengths scaling like t...
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A surface tension driven micropump harnessing the pressure difference generated by drops of different curvature radii proves to be a simple and attractive passive method to drive fluid flow in microdevices. Here we observed the appearance of backward flow when the initial sizes of the droplets at the inlet and outlet ports are similar. To explain this phenomenon several hypotheses have been inv...
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Surface tension-driven self-alignment is a passive and highly-accurate positioning mechanism that can significantly simplify and enhance the construction of advanced microsystems. After years of research, demonstrations and developments, the surface engineering and manufacturing technology enabling capillary self-alignment has achieved a degree of maturity conducive to a successful transfer to ...
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Surface tension, a line force, is a unique type of force, which scales directly to length. When the dimension of interest shrinks down to sub-millimeter range, the size range typical for MEMS devices, surface-tension force becomes dominant over most other forces, such as those based on pressure (surface force) or mass (body force), e.g., see [1,2]. This dominance of surface tension has most typ...
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ژورنال
عنوان ژورنال: AIChE Journal
سال: 2001
ISSN: 0001-1541,1547-5905
DOI: 10.1002/aic.690470404