TY - GEN
T1 - Experimental Study on a Side-By-Side Configuration of Two Cylinders Helically Covered by Triple Rods
AU - Prastianto, Rudi Walujo
AU - Pumbarino, Bagas
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2023
Y1 - 2023
N2 - Many investigations had been done both numerically and experimentally, on the characteristics of multiple-arranged cylinders especially in terms of the induced fluid forces and responses caused by external fluid flows acting on them. This paper discusses the investigation result on induced drag of two cylinders helically wrapped around by triple rods with certain gap in air flow fields. The model cylinders were installed in the test section of a wind tunnel as a side-by-side arrangement and treated as roll supports at ends of the cylinders. The model was executed at subcritical regime of incoming uniform air flow acting perpendicular to the cylinders that related to Reynolds number of 3.9 × 104 and evaluated for different gaps between the cylinder of 1.75D, 2.0D, and 2.50D, respectively, where D is diameter of the bare cylinder. Load cells were used for measuring the drag occurring on the cylinders. For all gap variety evaluated results demonstrated that greater coefficient of drag (CD) happened in the two cylinders which was caused by more prominent interference between them. The CD increased greater than other gaps for the cylinder’s gap of 2.0D that was well confirmed against others relevant works. For this side-by-side configuration, the CD of the lower and upper cylinders significantly increased in contrast with the single cylinder case by 55.8% and 55.5%, respectively.
AB - Many investigations had been done both numerically and experimentally, on the characteristics of multiple-arranged cylinders especially in terms of the induced fluid forces and responses caused by external fluid flows acting on them. This paper discusses the investigation result on induced drag of two cylinders helically wrapped around by triple rods with certain gap in air flow fields. The model cylinders were installed in the test section of a wind tunnel as a side-by-side arrangement and treated as roll supports at ends of the cylinders. The model was executed at subcritical regime of incoming uniform air flow acting perpendicular to the cylinders that related to Reynolds number of 3.9 × 104 and evaluated for different gaps between the cylinder of 1.75D, 2.0D, and 2.50D, respectively, where D is diameter of the bare cylinder. Load cells were used for measuring the drag occurring on the cylinders. For all gap variety evaluated results demonstrated that greater coefficient of drag (CD) happened in the two cylinders which was caused by more prominent interference between them. The CD increased greater than other gaps for the cylinder’s gap of 2.0D that was well confirmed against others relevant works. For this side-by-side configuration, the CD of the lower and upper cylinders significantly increased in contrast with the single cylinder case by 55.8% and 55.5%, respectively.
KW - Drag
KW - Experimental study
KW - Side-by-side arrangement
KW - Triple rods
UR - http://www.scopus.com/inward/record.url?scp=85137111909&partnerID=8YFLogxK
U2 - 10.1007/978-981-19-0867-5_38
DO - 10.1007/978-981-19-0867-5_38
M3 - Conference contribution
AN - SCOPUS:85137111909
SN - 9789811908668
T3 - Lecture Notes in Mechanical Engineering
SP - 318
EP - 324
BT - Recent Advances in Mechanical Engineering - Select Proceedings of ICOME 2021
A2 - Tolj, Ivan
A2 - Reddy, M.V.
A2 - Syaifudin, Achmad
PB - Springer Science and Business Media Deutschland GmbH
T2 - 5th International Conference on Mechanical Engineering, ICOME 2021
Y2 - 25 August 2021 through 26 August 2021
ER -