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Flow velocity is an important process parameter that quantifies the volume or mass flow rate as well as monitors the process safety. To nonintrusively measure the flow velocity of horizontal gas–liquid two-phase flow, an ultrasonic Doppler sensor and a conductance sensor with dedicated measurement models are presented. The air superficial flow velocity can be directly obtained and the water superficial...
For the overall superficial velocity measurement of oil-water two-phase flow in horizontal pipeline, using Continuous Wave Ultrasonic Doppler (CWUD) technique, a calculation model considering the influence of holdup distribution is proposed. A CWUD system is composed of a pair of piezoelectric ceramic ultrasonic transducers with center frequency of 1MHz. According to Doppler Effect, the frequency...
Ultrasonic technology has potential application prospect in measurement of phase fraction in oil-water two-phase flow. An ultrasound attenuation method is discussed in the oil-water two-phase flow. Geometric simulation models of oil-water two-phase flow with different fractions are set up based on the finite element analysis method. Simulation results show that phase fraction and distribution jointly...
Accurate measurement of multiphase flow parameter has significance on the optimization of production process and equipment. Ultrasonic measurement technology has potential applications in two-phase flow measurement. In order to understand the ultrasonic testing mechanism, the ultrasound attenuation characteristics in the oil-water two-phase flow are numerically investigated. Two-dimension models of...
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