This research looks into four key aspects of droplet dynamics:

1. Rolling dynamics of single and compound droplets in a viscous medium (read the paper here, prf).

2. Evaporation of compound droplets (read the paper here, langmuir).

3. Spreading of a droplet on liquid interface (read the paper here, colsua).

4. Effect of relaxation time in surface tension measurement (read the paper here, colsua).
   
   

Superior control of multiphase micro-drops owns much of the future in microfluidic technology. Understanding the dynamics of such compound systems is the key to its large-scale applications. Interfacial interaction of a droplet at a liquid-fluid interface dictates its successful generation and stability. The knowledge of the interface dynamics creates a rich profusion of domains that were previously unexplored. 

In contrast to the rigid body motion, dissipation inside and outside of a deformable drop always results in convoluted physics. While rolling on an incline, single-phase drops travel slower with increase in size. But a concealed dependency between the drop size and traveling velocity can be exposed by merely altering the medium resistance. Rolling motion of double emulsion droplets even affirms the presence of both of these dependencies, and a control over the transition from one to the other is achievable. A threshold size limit for such a transition has been identified demonstrating that the dependency between drop size and its velocity is not unidirectional. 

The evaporation of double emulsion droplets is also examined, and two new regimes of evaporation are identified. Resurfacing of a daughter droplet from an evanescing drop preceded by sudden spreading are uncommon observations in the literature. Detailed comprehension of the resurfacing of micro-droplets provides a possibility to control the evaporation mode, which was considered to be a random occurrence in the past.