"Droplet impact on solid surfaces: the effect of air and vapor" Prof. Tuan Tran

Date:  January 7th, 2015 (Wed)
Time:  3:00 pm – 4:00 pm
Venue:  Seminar room B503
Speaker:  Prof. Tuan Tran
(Nanyang Technological University, Singapore)

 Droplet impact on solid surfaces: the effect of air and vapor

Abstract

A range of spectacular phenomena results from impacts of droplets on solid surfaces, such as splashing, bubble entrapment, or droplet bouncing off from the surface. These phenomena, although not fully understood, were shown to be affected by the ambient air pressure. In the case that the surface is heated, the gas phase surrounding an impacting droplet consists of not only the air but also the vapor spontaneously generated from the droplet as it approaches the surface. The temperature dependence of the vapor pressure adds another dimension of complexity to the impact phenomena. In this talk I will discuss experimental studies that aim to gain more insight into the impact dynamics, with an emphasis on the the effect of air and vapor on the impact outcomes.

Contact information: Fluid Mechanics Unit & Continuum Physics Unit
 Kaori Egashira: (Tel) 098-966-8683  (e-mail) e-kaori@oist.jp