Detachment of droplets from surfaces due to turbulent flow

Research output: Unpublished conference presentation (presented paper, abstract, poster)Conference presentation (not published in journal/proceeding/book)Academic researchpeer-review

Abstract

Detachment of droplets from surfaces due to turbulent flow was studied experimentally. A wind tunnel generating a fully developed channel flow was constructed. Droplets on three different materials were tested in the wind tunnel. With plastic and glass substrates, the whole droplet moved when the velocity of the air current exceeded a critical value. For a stainless steel substrate, the droplet split into portions; one portion migrated and the other portion stayed at the initial position. When a droplet came to the end of the three tested substrates and reached the edge of a step, it moved along the step. Under the tested flow condition, all droplets either remained in the place or slid on the substrate, but no resuspension to the airborne state was observed.

Original languageEnglish
Pages453-459
Number of pages7
Publication statusPublished - 2014
Event13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014 - Hong Kong, Hong Kong
Duration: 7 Jul 201412 Jul 2014

Conference

Conference13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014
Country/TerritoryHong Kong
CityHong Kong
Period7/07/1412/07/14

Keywords

  • Detachment
  • Droplet
  • Turbulent flow

ASJC Scopus subject areas

  • Pollution
  • Building and Construction
  • Health, Toxicology and Mutagenesis
  • Computer Science Applications

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