Lekkala, M.R. and Latheef, M. and Jung, J.H. and Coraddu, A. and Zhu, H. and Srinil, N. and Lee, B.-H. and Kim, D.K. (2022) Recent advances in understanding the flow over bluff bodies with different geometries at moderate Reynolds numbers. Ocean Engineering, 261. ISSN 00298018
Full text not available from this repository.Abstract
The application of unsteady incompressible flow phenomenon over the bluff bodies has received the attention of many researchers due to the rich and complex physics underpinning these flows, and thus requiring special attention in their modelling and numerical simulations. The wake that forms at the leeside of the bluff body is of particular interest. Reynolds number and geometry are in turn two prominent parameters that govern the formation and subsequent behaviour of this wake. This paper reviews the wake formations for different cylindrical bluff bodies cross-sections such as circular, elliptical, helically twisted elliptical, symmetric wavy, asymmetric wavy, and harbor seal vibrissae cylinders. Alongside the Reynolds number and geometrical shape, the impacts of rotational rate, aspect ratio, angle of attack, and gap ratio between the cylinder and the bottom wall on the hydrodynamic coefficients, Strouhal number, recirculation length and suppression of vortex shedding in the cylinder wake are investigated. In addition, the variation of hydrodynamic coefficients for different cylindrical shapes are compared. Finally, concluding remarks are drawn based on recent advances in understanding the flow features and predictions with CFD methods. © 2022 The Authors
Item Type: | Article |
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Additional Information: | cited By 13 |
Uncontrolled Keywords: | Angle of attack; Aspect ratio; Biomimetics; Computational fluid dynamics; Cylinders (shapes); Hydrodynamics; Incompressible flow; Wakes, Biomimetic geometry; Bluff body; Computational fluid dynamic; Cylinder geometry; Ellipticals; Flow around bluff body; Flow characteristic; Hydrodynamics coefficients; Reynold number; Wake patterns, Reynolds number, computational fluid dynamics; flow modeling; geometry; hydrodynamics; Reynolds number; vortex shedding; wake |
Depositing User: | Mr Ahmad Suhairi UTP |
Date Deposited: | 19 Dec 2023 03:22 |
Last Modified: | 19 Dec 2023 03:22 |
URI: | https://khub.utp.edu.my/scholars/id/eprint/16346 |