Numerical investigation of the flow interaction of I-type cylinder near the plane wall

Yuwono Triyogi*, Ahmad Tohir

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The effect of the plane wall positions on the flow around an I-type cylinder with cutting angle varied of 0° (circular), 45°, 53° and 65° was studied numerically at a Reynolds Number of 54,000. The pressure distribution along the surface of the I-type cylinder and the plane wall was simulated by varying the gap-to-diameter of cylinder ratio (G/D) in the range of 0.0 ≤ G/D ≤ 0.3, using commercial computational fluid dynamics software, Fluent. The 2D Reynolds Stress Models (RSM) set at a steady-state was used to visualize the flow phenomena that occurred around the cylinder. The results show the appearance of the bubble separation in the lower side of the I-type cylinder for the gap ratio G/D of 0.1–0.3, but it did not appear on the circular cylinder. The combination of the flat surface and the curved surface possessed by the I-type and the gap ratio (G/D) are important parameters in influencing the flow interaction behaviour between the cylinder and the plane wall.

Original languageEnglish
Article number111353
JournalOcean Engineering
Publication statusPublished - 1 Jun 2022


  • Bubble separation
  • Curved surface
  • Flat surface
  • Gap ratio
  • I-type cylinder
  • Plane wall


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