BASIC STUDY ON AN ENERGY-CONVERSION SYSTEM USING GAS-LIQUID 2-PHASE FLOWS OF MAGNETIC FLUID - (ANALYSIS ON THE MECHANISM OF PRESSURE RISE)

The mechanism of pressure rise in a gas-liquid two-phase pipe flow of a magnetic fluid under a nonuniform magnetic field is investigated in detail both theoretically and experimentally. First, the governing equ ations of a one-dimensional gas-liquid two-phase flow of a magnetic fl uid are presented and numerically solved. Next, the pressure distribut ion in a nonuniform magnetic field region is measured in the cases of two-phase flow, single-phase flow and the stationary state using a new experimental apparatus for the flow system. From the numerical and ex perimental results, the magnitude of the pressure components which con tribute to the total driving force is accurately estimated. These resu lts on the pressure distribution will contribute to the development of a new energy conversion system using a gas-liquid two-phase magnetic fluid flow.