Effect of the wall surface texture treatments on the wetting flows

Yoshiyuki ISO, Jian HUANG, Shinsuke MATSUNO, Xi CHEN

Research output: Book Chapters | Papers in Conference ProceedingsConference paper (refereed)Researchpeer-review

Abstract

Gas-liquid two-phase interfacial flows, such as the liquid film flows (also known as wetting flows on walls), are observed in many industrial processes including absorption, desorption, distillation and so on. Efficient control of these wetting flows is one of the key design factors for ensuring the performance of such devices. For the optimum design of packed columns widely used in these kinds of processes, it is very important to predict the detailed behavior of wetting flows in packing elements, such that the mass transfer between the gas and liquid may be enhanced and the flooding and channeling of the liquid flow may be prevented. The present study focuses on the characteristics of wetting flows, in particular the drastic transition between the film flow and rivulet flow, as the liquid flow rate and the wall surface texture treatments are varied. The three-dimensional gas-liquid two-phase interfacial flow (wetting flow) simulation is based on the volume of fluid (VOF) model. The effect of texture geometry shows that the surface texture treatments added on the wall can improve the wetted area on the wall and mixing flow in the liquid film. © 2011 AIChE. All rights reserved.
Original languageEnglish
Title of host publicationEngineering Sciences and Fundamentals : Core Programming Topic at the 2011 AIChE Annual Meeting
Pages757-766
Number of pages10
Volume2
Publication statusPublished - 2011
Externally publishedYes
Event2011 AIChE Annual Meeting, 11AIChE - Minneapolis, United States
Duration: 16 Oct 201121 Oct 2011

Publication series

NameEngineering Sciences and Fundamentals : Core Programming Topic at the 2011 AIChE Annual Meeting
PublisherAmerican Institute of Chemical Engineers

Conference

Conference2011 AIChE Annual Meeting, 11AIChE
Country/TerritoryUnited States
CityMinneapolis
Period16/10/1121/10/11

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