Instrumentation is available to obtain samples and then measure the local void fraction as well as the size and number density of bubbles and/or particles in two and three-phase flow. But in most cases, these methods interfere with the flow and bias the sampling process. We have developed an isokinetic probe that can take accurate samples without changing the sample’s composites. This is achieved by aligning the probe’s intake nozzle with the flow’s local predominant direction and matching its internal pressure with its hydrodynamic environment and hence equalizing the inside and outside velocities. Then the fluid sample’s density is measured to calculate the local void fraction. The calibration procedure and results as well as extensive test data obtained in bubbly-flow tunnel and flotation cells respectively are presented and discussed.
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ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
July 24–29, 2011
Hamamatsu, Japan
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4441-0
PROCEEDINGS PAPER
Design and Testing of Instrumentation for Multi-Phase Flow Sampling and Local Void Fraction Measurement Available to Purchase
Yihong Yang,
Yihong Yang
Virginia Polytechnic Institute and State University, Blacksburg, VA
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Demetri P. Telionis
Demetri P. Telionis
Virginia Polytechnic Institute and State University, Blacksburg, VA
Search for other works by this author on:
Yihong Yang
Virginia Polytechnic Institute and State University, Blacksburg, VA
Demetri P. Telionis
Virginia Polytechnic Institute and State University, Blacksburg, VA
Paper No:
AJK2011-31004, pp. 27-37; 11 pages
Published Online:
May 25, 2012
Citation
Yang, Y, & Telionis, DP. "Design and Testing of Instrumentation for Multi-Phase Flow Sampling and Local Void Fraction Measurement." Proceedings of the ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 2, Fora. Hamamatsu, Japan. July 24–29, 2011. pp. 27-37. ASME. https://doi.org/10.1115/AJK2011-31004
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