Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Measurement of Fluid Dynamic Characteristics around Stenotic Obstruction in a Circular Channel

  • An, Jin-Hyo (School of Mechanical Engineering, Kyungpook National University) ;
  • Cheema, T.A. (School of Mechanical Engineering, Kyungpook National University) ;
  • Jeong, Seong-Ryong (Refrigerator BU, LG Electronics Inc.) ;
  • Lee, Choon-Young (School of Mechanical Engineering, Kyungpook National University) ;
  • Kim, Gyu-Man (School of Mechanical Engineering, Kyungpook National University) ;
  • Park, Cheol-Woo (School of Mechanical Engineering, Kyungpook National University)
  • Received : 2011.11.14
  • Accepted : 2011.11.29
  • Published : 2011.11.30
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Abstract

We measured experimentally the properties of fluid dynamics, velocity fields, and the pressure, around stenotic obstruction located inside a circular channel structure. Particle image velocimetry system was employed to obtain velocity fields at the central section of the circular channel in the streamwise direction. The stenosis model used was made of acrylic material with different stenotic aspect ratios. The working fluid was water and it was returned by a centrifugal pump system. Pressure measurements were carried out to validate the effect of a narrow passageway. Results showed that the acceleration of gap flow through stenotic obstruction and the pressure drop in the recirculation regime behind the stenosis model can be observed.

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References

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