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Particle-Imaging Velocimetry and Pressure Measurements of the Turbulent Flows Inside the Intake Duct

[+] Author Affiliations
Ruizhi Zhang, Renfang Huang, Xianwu Luo

Tsinghua University, Beijing, China

Lei Zhu

China Institute of Water Resources and Hydropower Research, Beijing, China

Yuanxing Dai, Jiajian Zhou

Science and Technology on Water Jet Propulsion Laboratory, Shanghai, China

Paper No. FEDSM2018-83378, pp. V002T14A012; 9 pages
  • ASME 2018 5th Joint US-European Fluids Engineering Division Summer Meeting
  • Volume 2: Development and Applications in Computational Fluid Dynamics; Industrial and Environmental Applications of Fluid Mechanics; Fluid Measurement and Instrumentation; Cavitation and Phase Change
  • Montreal, Quebec, Canada, July 15–20, 2018
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-5156-2
  • Copyright © 2018 by ASME


The present study mainly treats the flow measurement for the intake duct of a water-jet propulsion equipment using stereoscopic particle image velocimetry (SPIV) technique. To obtain clear flow field information in the intake duct, the authors have developed a suitable SPIV calibration method and used a time filter to preprocess images. The velocity distributions in an intake duct is investigated at the flow rate ranging from 0–35 m3/h by an independently designed test rig, which is composed of an open circulating water tank, a pump, a control valve and other measuring sensors. The pressure transducers are also used to measure the pressure fluctuations at two typical positions near the lip of the intake duct. The velocity distributions at the midplane of the intake duct depict that there is a jet flow due to the presence of duct lip, and a strong separation flow is induced between the jet and the duct wall. The experimental results are useful to give a clear insight into the flow behaviors inside the intake, and show the reason of the flow distortion at the outlet of intake duct. Moreover, some guidance can be provided for the application of SPIV in the intake duct.

Copyright © 2018 by ASME



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