GAS BUBBLE SIZE AND VELOCITY MEASUREMENTS USING HIGH-SPEED IMAGES OF GAS-LIQUID FLOWS

A quantitative flow visualization system has been developed to measure gas bubble size and velocities of gas-liquid flows. The images are acquired using a high-speed digital imaging system. An image processing algorithm based on standard edge-detection routines and morphological operations are used to demarcate the boundaries of the gas bubbles and obtain the bubble size distribution. The displacement of the bubbles between two consecutive …