The structure of an upward slug flow in a vertical tube
O.N. Kashinsky, V.V. Randin, A.S. Kurdyumov
Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
Pages: 269-276
Abstract
Results of experimental study of gas-liquid slug flow in a vertical tube are presented. The electrochemical method was used for measurements. The method of conditional averaging of the studied parameters by ensemble of realizations was worked through. Velocity distribution was measured for various flow regimes of a gas-liquid mixture using this method. Distributions of liquid velocity in a liquid plug were obtained depending on a distance from the plug beginning. It is shown that within the initial region of a liquid plug, profiles of liquid velocity are deformed significantly in comparison with the velocity profile in a single-phase flow, and this is caused by the effect of a toroidal vortex formed after a previous gas slug.
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