抄録
Normally, high viscosity fluids are mixed in a batch mixer. However, the mixed fluids tend to be non-uniform mixing. We have therefore developed a small mixer which has a mixing area in millimeter order. A new mixing method for small mixers is described in the paper. This mixer mixes two flowing fluids by vibrating the wall of the flow channel using linkage mechanism operated by a DC motor. The mixing process was observed under an optical microscope fitted with a CCD camera. High viscosity fluids were prepared by adding thickening agents to water. We determined the optimal mixing state by mixing fluids of two colors (red and green). The mixing performance was evaluated under varying flow rate, the viscosity of the fluid, and vibrational frequency. As the results, we confirmed that when setting flow rate to low level and frequency to high level, the mixer provided better performance.
