Liquid attachment and momentum transfer by collisions between free-fall solids and liquid spray droplets

Pengfei He, Raivat Patel, Bo Zhang, Chao Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Understanding the solids wetting by collisions between flowing solids and spray droplets is essential to optimizing the design and operation of related industrial processes. This paper presents an innovative experimental method to identify the statistical distributions of liquid attachment and collision probability of the impingement of a liquid spray onto free-fall particles. To separate the liquid attachment from other contributions to the mass measurements of particles and liquids, individual impingement experiment with hydrophobic or hydrophilic particles of the same otherwise properties is respectively performed under the same conditions. In addition, a series of collection bins are distributed along the spray path to determine the statistical probability of collision properties including coating thickness. Based on these measurements, the collision-induced momentum transfer and velocity redistribution of solids and droplets can be estimated with the aid of a Lagrangian trajectory model. Consequently a general two-parameter of collision probability density function is proposed.

Original languageEnglish (US)
Title of host publicationFluids and Heat Transfer
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages2455-2464
Number of pages10
EditionPARTS A, B, C, D
ISBN (Print)9780791845233
DOIs
StatePublished - 2012
EventASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012 - Houston, TX, United States
Duration: Nov 9 2012Nov 15 2012

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
NumberPARTS A, B, C, D
Volume7

Conference

ConferenceASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012
Country/TerritoryUnited States
CityHouston, TX
Period11/9/1211/15/12

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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