Experimental Investigation of Drag Coefficient of Two Tandem Cylinders at Staggered Arrangement in Turbulent Flow

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BAK KHOSHNEVIS Abdolamir; Abasghorbani naeim; Ezadi Yazdi Mohammad Javad

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Journal: JOURNAL OF MECHANICAL ENGINEERING Year:2020 | Volume:50 | Issue:2 (91) Page(s): 83-91

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Title

Experimental Investigation of Drag Coefficient of Two Tandem Cylinders at Staggered Arrangement in Turbulent Flow

Author(s)

BAK KHOSHNEVIS Abdolamir | Abasghorbani naeim | Ezadi Yazdi Mohammad Javad | Issue Writer Certificate

Keywords

drag coefficient

staggered arrangement

flow turbulent intensity

load cell

Abstract

In the present study, the effects of turbulent flow are experimentally investigated on the drag coefficient of tandem cylinders with non-equal diameters in different Reynolds numbers. drag coefficient test for downstream cylinder in diameters A=15. 5 mm and B=21. 3 mm, was experimentally carried out at two longitudinal distance at five Reynolds numbers based on the upstream cylinder diameter for two turbulence intensity of 4. 5 and 7% respectively. The position of the upstream cylinder to the downstream cylinder changes at five angels 0, 22. 5, 45, 67. 5 and 90 degrees. Results for downstream cylinder in the 4. 5% turbulence intensity indicate that with increasing the diameter ratio of the cylinders and increasing the longitudinal distance between the two cylinders, the drag coefficient increases. However, with increasing aligning angels of the upstream cylinder with respect to the downstream cylinder, the drag coefficient varies depending on the nature of flow. Finally, by increasing the flow turbulence intensity, the drag coefficient decreases significantly at all stages of the experiment.

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APA: Copy

BAK KHOSHNEVIS, Abdolamir, Abasghorbani, naeim, & Ezadi Yazdi, Mohammad Javad. (2020). Experimental Investigation of Drag Coefficient of Two Tandem Cylinders at Staggered Arrangement in Turbulent Flow. JOURNAL OF MECHANICAL ENGINEERING, 50(2 (91) ), 83-91. SID. https://sid.ir/paper/270197/en

Vancouver: Copy

BAK KHOSHNEVIS Abdolamir, Abasghorbani naeim, Ezadi Yazdi Mohammad Javad. Experimental Investigation of Drag Coefficient of Two Tandem Cylinders at Staggered Arrangement in Turbulent Flow. JOURNAL OF MECHANICAL ENGINEERING[Internet]. 2020;50(2 (91) ):83-91. Available from: https://sid.ir/paper/270197/en

IEEE: Copy

Abdolamir BAK KHOSHNEVIS, naeim Abasghorbani, and Mohammad Javad Ezadi Yazdi, “Experimental Investigation of Drag Coefficient of Two Tandem Cylinders at Staggered Arrangement in Turbulent Flow,” JOURNAL OF MECHANICAL ENGINEERING, vol. 50, no. 2 (91) , pp. 83–91, 2020, [Online]. Available: https://sid.ir/paper/270197/en

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