Abhishek Saha

TL;DR: A first principles model that connects respiratory droplet physics with the evolution of a pandemic such as the ongoing Covid-19 is developed and the firm theoretical underpinning that connects the two scales—macro-scale pandemic dynamics and micro-scale droplets physics—thus could emerge as a powerful tool in elucidating the role of environmental factors on infection spread through respiratory droplets.

TL;DR: A model is developed that tries to explain and describe the temperature and relative humidity sensitivity of respiratory droplets and their possible connection in determining viral outbreaks, and determines the droplet evaporation time that determines the infection rate constant.

TL;DR: In this article, the breakup characteristics of water emanating from hollow cone hydraulic injector nozzles induced by pressure-swirling were analyzed using shadowgraph and phase Doppler particle anemometry for a complete study of the atomization process.

TL;DR: In this article, experimental observation and mechanistic interpretation of the evolution and self-acceleration of constant-pressure, spherically expanding H2/O2/N2 flames, subjected to hydrodynamic and diffusional-thermal instabilities over a wide range of pressure, equivalence ratio and thermal expansion ratio is presented.

TL;DR: In this article, the effects of injection type (transverse versus axial) and initial size of the droplets on the final deposit layer microstructure have been studied, and the results show that for axial injection the heating process is very rapid and smaller droplets ( ǫm) have better chances of getting pyrolized in the case of transverse injection.