Influences of Interfacial Shear in Turbulent Film Boiling on a Horizontal Tube with External Flowing Liquid

• 作者: Hai-Ping Hu
• 来源期刊: 工程(英文)(1947-3931)
• 学科: 医学
• 关键词: EDDY DIFFUSIVITY Potential Flow Colburn ANALOGY
• 年，卷（期）: 2015,（11）
• 页码范围: 754-764
• 页数: 11页
• 分类号: R73

摘要

The paper presents a theoretical study about turbulent film boiling on a horizontal tube with external flowing liquid. The high velocity flowing liquid is determined by potential flow theory. By using Colburn analogy, the present paper successfully addresses a new model to predict the vapor-liquid interfacial shear, applies the interfacial shear into the forced balance equation and then combines the forced balance equation, the energy equation and thermal energy balance equation. At last, both the film thickness and Nusselt number can be obtained. Besides, the present analysis also includes radiation effects, temperature ratio and eddy diffusivity. Finally, a comparison between the results of the present study and those reported in previous theoretical and experimental studies is provided.