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Indexed by:期刊论文

Date of Publication:2011-12-01

Journal:HEAT AND MASS TRANSFER

Included Journals:Scopus、SCIE、EI

Volume:47

Issue:12

Page Number:1611-1619

ISSN No.:0947-7411

Abstract:Numerical simulation has been made on heat and mass transfer of vapor absorption by wavy lithium bromide aqueous solution films. The velocity fields and interface positions are obtained by VOF model. Solitary waves are generated by periodically disturbed inflow boundary. Based on these, the temperature and concentration fields are obtained with a stationary interface shape. The effect of solitary waves on the heat and mass transfer across the film is investigated. It is shown that due to the mixing of circulation and stretch of large film thickness, the gradient of concentration and absorption rate decrease for solitary wave region. The region of capillary waves shows a significant amount of absorption enhancement. The percentage of absorption for the different regions is quantified.