Ultrasonic Measurement of Velocity Profile on Bubbly Flow Using a Single Resonant Frequency†
AbstractThe present paper describes a measurement technique for phase-separated velocity profile measurements in the two-phase bubbly flow. The Ultrasonic Velocity Profiler (UVP) method which is nonintrusive measurement, is applied to obtain an instantaneous velocity profile of liquid and bubble separately by using only one resonant frequency. To achieve this target, developed algorithm, which can decompose frequency component of the Doppler signal affected by liquid and bubble, is applied in the UVP system to obtain and separate instantaneous velocity profile of both phases. For confirming the applicability of modified measurement system, the developed UVP was used for the measurement of the velocity profile in bubbly flow on vertical pipe flow apparatus, the measurement accuracy was validated by UVP Original and Particle Image Velocimetry (PIV) method. Finally, the UVP was applied to experiment for observing velocity distribution of both phases in a bubble column.
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Wongsaroj, W.; Hamdani, A.; Thong-un, N.; Takahashi, H.; Kikura, H. Ultrasonic Measurement of Velocity Profile on Bubbly Flow Using a Single Resonant Frequency. Proceedings 2018, 2, 549.
Wongsaroj W, Hamdani A, Thong-un N, Takahashi H, Kikura H. Ultrasonic Measurement of Velocity Profile on Bubbly Flow Using a Single Resonant Frequency. Proceedings. 2018; 2(8):549.Chicago/Turabian Style
Wongsaroj, Wongsakorn; Hamdani, Ari; Thong-un, Natee; Takahashi, Hideharu; Kikura, Hiroshige. 2018. "Ultrasonic Measurement of Velocity Profile on Bubbly Flow Using a Single Resonant Frequency." Proceedings 2, no. 8: 549.
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