抄録
The understanding of the two-phase flow characteristics in a very narrow annulus with rotating inner cylinder is very important in the development of turbine pump for liquid-propellant rockets. In this investigating the characteristics of the air-water two phase flow in an narrow annular gap of 0.75mm with rotating inner cylinder were conducted. Experimental conditions were as follows; revolution of inner cylinder 0-3100rpm, volumetric gas and liquid fluxes J_G=0.014-0.526m/s, J_L=0.0121-0.2384m/s. The influence of the revolution on the void fraction and friction were experimental confirmed.
