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The International Conference on Multiphase Systems, ICMS'2000
Ufa, RUSSIA, June 15-17, 2000

Recent Developments in the Modeling and Analysis of Two-phase Flow Instabilities

Podowski M. Z.

Center for Multiphase Research, Rensselaer Polytechnic Institute, Troy, New York 12080-3590, USA

Because of the practical importance of two-phase flow instabilities, substantial efforts have been made to date to understand the physical phenomena governing such instabilities and to develop computational tools to model the dynamics of marginally-stable/unstable boiling systems. The purpose of this paper is to present an overview of the recent progress in the area of modeling two-phase flow dynamics and in the development of new methods for the analysis of flow-induced instabilities.

Two major issues will be discussed. First, an integrated methodology for the analysis of flow-induced instabilities in boiling channels and systems using a multifield model will be presented. Secondly, a new concept of multidimensional stability analysis will be introduced.