Multiphase Flow Measurements: Point･Plane･Spatio-Temporal, and Furthermore

Abstract

This paper presents mainly a review of measuring techniques for multiphase flows in the past 30 years and an outlook of future progress on distributed measuring systems. Laser based measuring system had started by point measurement such as a probe, laser Doppler, and Phase Doppler anemometry, and then extended to Particle Imaging techniques to obtain 2D plane information. Recently, high speed digital cameras allowed us to get 3D3C temporal velocity information. The possibility of IoT based distributed sensing system is discussed with an application of multiphase flow analysis for future developments.