Concentration Profile Measurement of Liquid–Solid Two-Phase Horizontal Pipe Flow Using Ultrasound Doppler

Concentration measurement of multiphase flow is essential to flow assurance and monitoring in industrial processes. The concentration profile is a quantitative parameter to diagnose the multiphase flow states and has drawn wide attention from researchers. An ultrasound Doppler technique is adopted to measure the concentration profile of liquid–solid two-phase horizontal pipe flow. A Bayesian inference based on the differential evolution adaptive Metropolis sampling algorithm is proposed to solve the statistical inversion of the concentration profile. The posterior probability distributions of the solid concentration are sampled, and the final concentration profile is chosen with the maximum a posteriori probability. An experimental platform is built for liquid–solid two-phase flow experiments and ultrasound concentration profile measurement. The measured concentration profiles are verified with a maximum mean absolute error of 8.14%.