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Measurements of the flow fields around two square cylinders in a tandem arrangement

  • Moon Kyoung Kim
  • Dong Keon Kim
  • Soon Hyun Yoon
  • Dae Hee Lee
Article

Abstract

The velocities, turbulence intensities, Reynolds shear stresses, and turbulent kinetic energies of the flow fields around two square cylinders in a tandem arrangement were investigated using particle image velocimetry (PIV). The experiments were made for the spacing between the two cylinders ranging from s/D = 0.5 to 10.0 and two Reynolds numbers of 5,300 and 16,000. The results showed that the flow patterns at s/D≤2.0 were drastically different from those at s/D≥2.5 for both Reynolds numbers. The sudden change in the flow patterns depended on the reattachment of the shear layer separated from the upstream cylinder.

Keywords

Square cylinder Tandem arrangement Flow fields Critical spacing Strouhal number Particle image velocimetry 

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Copyright information

© Korean Society of Mechanical Engineers 2008

Authors and Affiliations

  • Moon Kyoung Kim
    • 1
  • Dong Keon Kim
    • 2
  • Soon Hyun Yoon
    • 3
  • Dae Hee Lee
    • 4
  1. 1.Department of Mechanical Design Chang-Won CollegeChangwon, GyeongnamKorea
  2. 2.Institute of Mechanical Engineering TechnologyMoscowRussia
  3. 3.School of Mechanical Engineering Busan National UniversityGumjung-Gu, BusanKorea
  4. 4.Inje Engineering Institute School of Mechanical and Automotive Engineering Inje UniversityGyeongnamKorea

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