Local instantaneous equations
Abstract
A summary of a local instantaneous equations approach to two phase flow is presented. Primary and secondary jump conditions in the interface are considered starting with the integral balance laws written for a fixed control volume containing both phases. These are transformed to obtain a sum of two volume integrals and a surface integral. The volume integrals lead to the local instantaneous partial differential equations valid in each phase whereas the surface integral furnishes the local instantaneous jump conditions valid on the interface only. The dynamics of vapor bubbles and the hydrodynamics of liquid films are developed as examples.
 Publication:

In Von Karman Inst. for Fluid Dyn. TwoPhase Flows in Nucl. Reactors
 Pub Date:
 1978
 Bibcode:
 1978tpfn....1R....D
 Keywords:

 Partial Differential Equations;
 Position (Location);
 Two Phase Flow;
 Boiling;
 Heat Transfer;
 LiquidVapor Interfaces;
 Rayleigh Equations;
 Fluid Mechanics and Heat Transfer