Journal of Porous Media

ISSN for PRINT: 1091-028X

For Online Access

Best Paper Award Selection - Editorial Board Site

2008, Volume11

Issue 4

96 pages

DOI: 10.1615/JPorMedia.v11.i4

Issue price - $107.00

A. Golpaygan
Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada M5S-3G8

N. Hsu
Analytic Energy Systems, Woburn, MA 01801, USA

Nasser Ashgriz
University of Toronto

A numerical study of droplet penetration and spreading in a porous substrate is presented. The porous substrate is modeled using a staggered arrangement of fiber-like obstacles. It is shown that the droplet penetration is sensitive to the initial impact condition. The impact of a droplet on a porous substrate results in mainly radial spreading of the drop on the surface of the substrate, with only a small fraction of the liquid penetrating into the substrate. Effect of contact angle, β, between the liquid and the substrate on the penetration of a droplet is presented. The results are described based on two parameters: (1) penetration factor, ε, which describes penetrated depth of the droplet and (2) remaining droplet mass ratio, α, which is the ratio of the mass of the droplet remaining on the top of the substrate to the initial droplet mass.

DOI: 10.1615/JPorMedia.v11.i4.10 Download article, 323-341 pages

Article price - $35.00

  Next article >>