Computational study of the stability of charged droplets

Supervisor: Dr. Styliani (Stella) Constas

Project: Computational study of the stability of charged droplets

Can extend to MSc?:  Yes

Project Description (Abstract):

Droplet chemistry affects almost every aspect of everyday life. Man-made aerosols in industrial and household sprays, atmospheric aerosols, vesicles in nanofluidics and microfluidics, emulsions are a few examples of the droplet environments. The chemical and physical properties of the droplets are distinct from those of their bulk analogues. Even though droplets have been thoroughly studied for over one and a half century, their behaviour is still far from being understood and the entire spectrum of their potential applications has not been explored yet. Recent examples of the distinct droplet behaviour are the protein droplets in solution, multi-point star-shaped droplets found in molecular simulations carried out in our research group [S. Consta, “Manifestation of Rayleigh instability in droplets containing multiply charged macroions” Journal of Physical Chemistry B 114: 5263 (2010)], electrosprayed nano- and micro-sized droplets used in the generation of nano- and micro-particles [S. A. Malik, W. H. Ng, J. Bowen, J. Tang, A. Gomez, A. J. Kenyon and R. M. Day, J. Colloid Interface Sci., 467, 220 (2016)]. In this project the student will analyze the theoretical aspects of the stability of charged droplets [L. Rayleigh, Philosophical Magazine Series 5, 1882, 14, 184 (1882); Consta and A. Malevanets, Mol. Simul. 41, 73 (2015)]. The project requires a good knowledge of electrostatics. The student will learn how to study the stability of charged conducting and dielectric droplets. The project will also involve molecular dynamics simulations and possibly continuum modeling (depending on the interests and skills of the student).

 


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