Diffusion of Bubbles in Two-Phase Flow : 2nd Report, Diffusion of a Single Bubble and Eddy Diffusivity of Heat in Single-Phase Turbulent Flow

1 January 1979

journal article
Published by Japan Society of Mechanical Engineers in Bulletin of JSME

Vol. 22 (168) , 841-847
https://doi.org/10.1299/jsme1958.22.841

Abstract

In this second report, we investigate the relation between the turbulent diffusion of a bubble and eddy diffusivity of heat in the core of a fully developed pipe flow. As a result, it is found that the diffusivity of bubbles is smaller than the eddy diffusivity of heat, and can be divided into three regions, corresponding to the distribution of terminal velocities of bubbles in water against the size of bubbles.

Keywords

DIFFUSION
EDDY DIFFUSIVITY
SINGLE BUBBLE
PHASE TURBULENT
2ND REPORT
TURBULENT FLOW
PHASE FLOW

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