Interfacial Area and Interfacial Transfer in Two-Phase Flow Systems.

Ishii, M. ; Hibiki, T. ; Revankar, S. T. ; Kim, S. ; LeCorre, J. M.

Technical Information Center Oak Ridge Tennessee

关键词: Two phase flow;    Interfaces;    Field equations;    Bubbles;    Turbulence;   

RP-ID  :  DE2004809191

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

In the two-fluid model, the field equations are expressed by the six conservation equations consisting of mass, momentum and energy equations for each phase. The existence of the interfacial transfer terms is one of the most important characteristics of the two-fluid model formulation. The interfacial transfer terms are strongly related to the interfacial area concentration and to the local transfer mechanisms such as the degree of turbulence near interfaces. This study focuses on the development of a closure relation for the interfacial area concentration. A brief summary of several problems of the current closure relation for the interfacial area concentration and a new concept to overcome the problem are given.