Interfacial Area Concentration and Void Fraction of Two-Phase Flow in Narrow Rectangular Vertical Channels

Author:

Wilmarth T.1,Ishii M.1

Affiliation:

1. School of Nuclear Engineering, Purdue University, West Lafayette, IN 47907

Abstract

Adiabatic concurrent vertical two-phase flow of air and water through narrow rectangular channels, gap widths 1 mm and 2 mm, was investigated. This study involved the observation of flow using a charge coupled device (CCD) camera. These images were then digitized and examined by applying an image processing technique to determine local average void fraction and local average interfacial area concentration. The void fraction data were then plotted using a drift flux plot to determine the distribution parameter and vapor drift velocity for each separate flow regime.

Publisher

ASME International

Subject

Mechanical Engineering

Reference11 articles.

1. Ali M. , and KawajiM., 1991, “The Effect of Flow Channel Orientation on Two-Phase Flow in a Narrow Passage Between Flat Plates,” ASME/JSME Thermal Engineering Proceedings, Vol. 2, pp. 183–190.

2. Ali, M., Sadatomi, M., Charles, M. E., and Kawaji, M., 1991, “Effects of gap width and orientation on two-phase flow in a narrow passage between two flat plates,” Proceedings of the International Conference on Multiphase Flows, pp. 15–18.

3. Chisholm D. , and LairdA. D. K., 1958, “Two-Phase Flow in Rough Tubes,” Trans. ASME, Vol. 80, No. 2, pp. 276–286.

4. Coleman, H. W., and Steele, W. G., 1989, Experimentation and Uncertainty Analysis for Engineers, Wiley, New York.

5. Ishii, M., 1977, “One-Dimensional Drift-Flux Model and Constitutive Equations for Relative Motion Between Phases in Various Two-Phase Flow Regimes,” ANL-77-47.

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