WIT Press

On The Formulation Of Two-phase Flow Equations For Bubbly Liquids

Price

Free (open access)

Paper DOI

10.2495/AFM960311

Volume

9

Pages

10

Published

1996

Size

1,121 kb

Author(s)

X.A. Delassade

Abstract

This paper is devoted to the derivation of the equations of motion for the two separate phases in a dispersed bubbly liquid. A description of the concept of dispersed two-phase flow is presented on the bases of the theory of micromorphic materials. The bubbly liquid is considered as a mixture of a micromorphic fluid representing the dispersed phase, bubbles, and a classical Newtonian liquid as the continuous phase. The momentum equations for each phase are established from physical arguments. Definitions and considerations are presented relating to pressures and stress tensors that are encountered in the description of dispersed two-phase flow. The relations between local phenomena and continuum variables are the subject of extensive discussion. In this context the collisional forces between the bubbles and other interaction forces are

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