Summary of Research Work

 

Surface Tension Dominated Phenomena

 

In the world of submicrons to millimeters, capillary forces usually dominate over other forces. Given a fluid or solid object of size L, capillary forces are in general proportional to L, whereas surface and body forces vary as L2 and L3, respectively. Thus, as L decreases, surface tension becomes increasingly important. It is therefore not surprising that many natural phenomena and industrial processes are governed by capillarity. Below are four areas I have made contributions to.

 

1.     Thin Solid Films

 

·     Diffusion-controlled growth of compound phases

 

·     Delta-function model of crystals

 

·     Grain-boundary grooving and migration

 

·     Anisotropic grain-boundary grooving

 

·     Fingering instability at a film edge

 

·     A tangent-plane marker-particle numerical method

 

 

2.     Thin Liquid Films

 

·     Rayleigh’s instability of liquid nanothreads 

 

·     Disjoining pressure 

 

 

3.     Two-Phase Flow in Microchannels

 

·     A dual-wet micro heat pipe 

 

 

4.     Dynamic Surface Tension

 

·     Oscillating drop/bubble tensiometry 

 

 

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