Experimental investigation of particle removal from surfaces by pulsed air jets

G. Ziskind, L. P. Yarin, S. Peles, C. Gutfinger

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

This work presents an experimental study of particle removal from surfaces by means of a pulsed air jet directed toward the particle-laden surface. During the experiments, solid particles were dispersed over the surface, forming a layer of particles that did not touch each other. Under these conditions, resuspension of an individual particle was independent of the number of particles and their location. We attempt to explain the observed phenomena by analogy to heat transfer enhancement by pulsed jets. It is expected that since pulsed jets are effective in surface cooling, their application to improved surface cleaning should be promising. For a pulsed jet, we investigated the effect of pulse frequency on particle removal. It was found that particle removal efficiency could be significantly affected by the frequency of the jet. In particular, for a fixed jet velocity, the efficiency increases with frequency, reaches a maximum, and then decreases.

Original languageEnglish
Pages (from-to)652-659
Number of pages8
JournalAerosol Science and Technology
Volume36
Issue number5
DOIs
StatePublished - 1 Jan 2002
Externally publishedYes

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