Vol. 54 No. 01 (2004): Volume 54 Number 01, May 2004
Articles

Flow around Partly Buried Tandem Cylinders in a Steady Current

Figen Hatipoğlu
Department of Civil Engineering, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey
İlhan Avcı
Department of Civil Engineering, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey

Published 01/01/2004

Keywords

  • CFD,
  • circular cylinders,
  • flow visualization,
  • separation zone,
  • tandem configuration

How to Cite

Hatipoğlu, Figen, and İlhan Avcı. 2004. “Flow Around Partly Buried Tandem Cylinders in a Steady Current”. ITU ARI Bulletin of Istanbul Technical University 54 (01):60-65. https://ari.itu.edu.tr/index.php/ituari/article/view/8.

Abstract

This study concerns the flow around a pair of surface-mounted circular cylinders arranged in a tandem configuration. The study comprises (i) flow visualization experients and (ii) numerical simulations performed by using a CGD model. The influence of the burial ratio, G/D, on flow interference between cylinders is investigated and the lengths of the separation zones are determined for the Reynolds number range varying from 1.3 x 10^4 to 2.6 x 10^4. Qualitative and quantitative comparisons with experimental results obtained by using the digital image processing technique are made to evaluate the ability of simulation. Results are also compared with the previous studies performed for a single cylinder at corresponding Reynolds numbers. Evidently, the length of the downstream separation zone is influenced by changing burial depth and presence of the upstream cylinder.