NDLI: Flow Characteristics of Freely Rotating Rectangular Cylinders With Different Width to Height Ratios

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Park, Y. G. Yoon, H. S. Ha, M. Y.
Copyright Year	2011
Abstract	The present study numerically investigates flow past freely rotating rectangular cylinders with different width to height ratios. The immersed boundary method (IBM) to model the rectangular cylinder based on the finite volume method is used to study a two-dimensional (2-D) laminar fluid flow for different Reynolds numbers of 50, 100, and 150 in the range of 0.2 ≤ W/H ≤ 1.0, where W/H is the width to height ratio. There are three different regimes of motion. The first one is the periodic oscillation regime. The second one is rotation with reversal of direction regime. The last one is the rotation with one direction regime. All the cases are periodic oscillation regime except the cases of Re = 100 and 150 with W/H = 1.0. For Re = 100 and 150 with W/H = 1.0, the regimes are the rotation with reversal of direction regime and the rotation with one direction regime, respectively. The Strouhal number decreases with increasing the width to height ratio for Re = 50, 100 and 150. However, for Re = 100 and 150, the Strouhal number disappears at a width to height ratio of 1.0. The present study reports the detailed information of flow structure on the cylinder surface at different width to height ratio.
Sponsorship	Fluids Engineering Division
Starting Page	2091
Ending Page	2096
Page Count	6
File Format	PDF
ISBN	9780791844403
DOI	10.1115/AJK2011-08002
Volume Number	ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D
Conference Proceedings	ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
Language	English
Publisher Date	2011-07-24
Publisher Place	Hamamatsu, Japan
Access Restriction	Subscribed
Subject Keyword	Fluid dynamics Reynolds number Oscillations Flow (dynamics) Rotation Finite volume methods Cylinders
Content Type	Text
Resource Type	Article

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