INTRODUCTION ILLUSTRATIONS CHAPTER I 1.1 1.2 1.3 COALESCENCE OF DISTILLED WATER DROPS Introduction Experimental Methods Experimental Results a) Dimple stability of water drops b) Effects of relative humidity and Impact velocity on coalescence c) Interference patterns for colliding water ii iii vii 1 1 2 6 6 drops 8 d) Retardation of water drop evaporation 13 e) Electrical effects on dimpling 14...

Software testing is one of the most challenging and arduous phase of software development life cycle (SDLC) which helps in determining the software quality. Code coverage is a widely used testing paradigm, which describes the degree to which the code has been tested. Aim of the current paper is to propose an optimised code coverage algorithm with the help of an emerging technique, i.e., intelli...

Applying trust in Wireless Sensor network (WSN) is an emerging area where researchers are engrossed in developing novel design archetype to address the security issues. Security plays an important role in WSN where trustworthy sensor node turns into a untrustworthy one because of hardware and software faults. Aim of the paper is to propose an optimized path coverage algorithm with the help of a...

The steady deformation and breakup of emulsion drops in a uniform electric field are considered experimentally. Due to the low volume fraction of inner drops, the emulsions can be effectively assumed as Newtonian fluids with spatial nonuniformity. The measurements of the electrical properties show that the oil-in-water (o/w) emulsion drop behaves like a conducting drop. On the other hand, the w...

Condensation of water from the atmosphere on a solid surface is an ubiquitous phenomenon in nature and has diverse technological applications, e.g. in heat and mass transfer. We investigated the condensation kinetics of water drops on a lubricant-impregnated surface, i.e., a micropillar array impregnated with a non-volatile ionic liquid. Growing and coalescing drops were imaged in 3D using a la...

We report a parallelized capillary microfluidic device for enhanced production rate of monodisperse polymersomes. This device consists of four independent capillary microfluidic devices, operated in parallel; each device produces monodisperse water-in-oil-in-water (W/O/W) doubleemulsion drops through a single-step emulsification. During generation of the double-emulsion drops, the innermost wat...

Evaporation of micro-liter drops from solid surfaces at room condition is mainly governed by diffusion. Therefore, there should be no difference between evaporation rate of sessile and pendant drops. However, some studies indicate a difference and explain the difference using buoyancy. The objective here is to reconcile the inconsistency in the literature. For that, first, by comparing two iden...

Intelligent well technology has provided facility for real time production control through use of subsurface instrumentation. Early detection of water production allows for a prompt remedial action. Effective water control requires the appropriate performance of individual devices in wells on maintaining the equilibrium between water and oil production over the entire field life. However, there...

In this paper we present a method for simulating physical behaviour and rendering of water drops in real-time. Our algorithm is based on processing water information stored into a texture resembling a height map. Thus calculation on the Graphics Processing Unit is possible. Texels on the height map retrieve how much of their current water amount remains and how much water is provided from texel...