The flow dynamics behind a flexible finite cylinder as a flexible agitator

29th Symposium of Malaysian Chemical Engineers 2016

Yong, T.H.^1 ; Chan, H.B.^2 ; Dol, S.S.^2 ; Wee, S.K.^2 ; Kumar, P.^3

Department of Mechanical Engineering, Curtin University Malaysia, Malaysia^1

Department of Petroleum Engineering, Curtin University Malaysia, Malaysia^2

Department of Chemical Engineering, Curtin University Malaysia, Malaysia^3

关键词: Finite cylinders;    Flexible cylinders;    Flow dynamics;    Rigid cylinder;    Single-phase flow;    Turbulence productions;    Water tunnel;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/206/1/012033/pdf
DOI  :  10.1088/1757-899X/206/1/012033

来源: IOP

【 摘 要 】

This paper investigates the flow dynamics behind a flexible finite cylinder in a single-phase flow using a water tunnel. The cylinder was individually submerged in water at ReD= 4000, 6000 and 8000. The cylinder investigated has a AR = 10 and 16 and is made of EVA in order to achieve the lower stiffness for flexibility. A same AR of its aluminium rigid cylinder was investigated to serve as a benchmark to the flow dynamics behind a flexible cylinder. The results the downwash that hinders the transportation of vortices to the downstream was diminished. As a direct consequence of this phenomenon, the turbulence production has seen significant improvement for flexible finite cylinder.