抄録
General mixing machine which has rotor with blades have some problems such as influence on mixing fluids by share force at blade tip and occurrence of cavitation at high speed range. In order to solve these problems, the mixing rotor without blades had been developed. This rotor has very simple shape, which has 3 thorough holes in the mixing rotor. In the present study, the numerical analysis and experiment were carried out to obtain the basic characteristics of mixing rotor with holes on columnar shape. In the experiment and numerical analysis, the number of rotation of rotor and kinetic viscosity of working fluid were changed. It was concluded as follows; (1) Outlet velocity is only subjected to number of revolutions. (2) Number of mixing power is smaller than general impeller's when mixing Reynold's number Rem ranges from 50 to 5000. (3) According to CFD, flow field is symmetrical when Rem is low. But, flow field is complicate when Rem is high.
