An experimental investigation of the hydrodynamics of two-phase flows (mixtures and jets) in pebble beds

An experimental investigation is performed of two-phase flows through pebble beds. A flow presents either a premixed gas-water mixture or a jet of gas in water. The dependences of pressure loss on the main characteristics of flow are obtained. A formula is suggested for the estimation of overall pressure loss of a two-phase medium in beds. The opening angle of a jet of gas as a function of the ratio of phase velocities is investigated for the case of jet flow of a two-phase medium. Some estimates are given of the physical pattern of the process of phase mixing.Translated from Teplofizika Vysokikh Temperatur, Vol. 42, No. 6, 2004, pp. 954–960.Original Russian Text Copyright © 2004 by G. A. Filippov, L. E. Melamed, V. P. Mastyukin, M. V. Konditerov, and A. I. Tropkina.