Absorption of Water Vapor into a Wavy Film of an Aqueous Solution of LiBr

スポンサーリンク

概要

• 論文の詳細を見る

• The surface has been treated as perfectly smooth in the analysis of absorption of water vapor into falling film of aqueous lithium bromide solution. However, waves or disturbances begin to appear at Re_f of 20. In this paper, the influence of the waves is analyzed numerically by assuming sinusoidal wave motion over the falling film. The velocity profile inside the film is determined following Kapitza's analysis. The wave velocity and the wavelength are determined from Pierson and Whitaker's equations derived from the stability analysis. The wave amplitude is assumed to be 30% of the average film thickness. The liquid surface is immobilized by coordinate transformation and the basic equations are further changed to eliminate the cross derivative terms by Shyy et al.'s method. The results are compared with those for a laminar flow with a smooth surface. It is found that the absorption rates increase by a factor of 1.7-2.4 over the Re_f range of 20-100.

• 一般社団法人日本機械学会の論文
• 1991-05-15

著者

• Morioka Itsuki

  Department Of Mechanical Engineering Faculty Of Engineering Tokushima University

• Kiyota Masanori

  Department Of Mechanical Engineering Faculty Of Engineering Tokushima University

関連論文

• Analysis of Steam Absorption by a Subcooled Droplet of Aqueous Solution of LiBr
• Heat Transfer from a Heated Fish Pond with a Vinyl Sheet Cover
• Absorption of Water Vapor into a Wavy Film of an Aqueous Solution of LiBr
• G315 SIMULATION OF STEAM ABSORPTION IN VERTICAL PLATE-TYPE ABSORPTION CHILLERS(Absorption heat pump)

スポンサーリンク