Abstract
Behavior of bubbles in Gas-liquid two-phase mixing section of microchannel flow system are visualized with microscope and high speed video camera. Several two-phase mixing section are manufactured experimentally and investigated on its performance. Venturi-typed mixing section of less 1mm scale can produce uniformly-sized micro-bubbles of less 100μm in diameter at more than 50,000 times per second. Prototype of multi-orifice typed mixing section are also investigated. Conditions and demands on the structure of micro mixing system for generation of bubbly flow in microchannel are disucussed.
