Two- and Three-Dimensional Flow Past Circular Cylinder(s)

1993 ◽  
pp. 71-75
Author(s):  
S. C. Luo
Keyword(s):  
Circular Cylinder ◽  
Three Dimensional ◽  
Three Dimensional Flow ◽  
Dimensional Flow ◽  
Flow Past

Three-dimensional instabilities in oscillatory flow past elliptic cylinders

2016 ◽  
Vol 798 ◽  
pp. 371-397 ◽  
Author(s):  
José P. Gallardo ◽  
Helge I. Andersson ◽  
Bjørnar Pettersen
Keyword(s):  
Circular Cylinder ◽  
Flow Direction ◽  
Three Dimensional ◽  
Circular Cylinders ◽  
Flow Structures ◽  
Three Dimensional Flow ◽  
Elliptical Cross ◽  
Dimensional Flow ◽  
Aspect Ratios ◽  
Flow Past

We investigate the early development of instabilities in the oscillatory viscous flow past cylinders with elliptic cross-sections using three-dimensional direct numerical simulations. This is a classical hydrodynamic problem for circular cylinders, but other configurations have received only marginal attention. Computed results for some different aspect ratios ${\it\Lambda}$ from 1 : 1 to 1 : 3, all with the major axis of the ellipse aligned in the main flow direction, show good qualitative agreement with Hall’s stability theory (J. Fluid Mech., vol. 146, 1984, pp. 347–367), which predicts a cusp-shaped curve for the onset of the primary instability. The three-dimensional flow structures for aspect ratios larger than 2 : 3 resemble those of a circular cylinder, whereas the elliptical cross-section with the lowest aspect ratio of 1 : 3 exhibits oblate rather than tubular three-dimensional flow structures as well as a pair of counter-rotating spanwise vortices which emerges near the tips of the ellipse. Contrary to a circular cylinder, instabilities for an elliptic cylinder with sufficiently high eccentricity emerge from four rather than two different locations in accordance with the Hall theory.

scholarly journals Three dimensional flow around a circular cylinder confined in a plane channel

2011 ◽  
Vol 23 (6) ◽  
pp. 064106 ◽  
Author(s):  
Nicolas Kanaris ◽  
Dimokratis Grigoriadis ◽  
Stavros Kassinos
Keyword(s):  
Circular Cylinder ◽  
Three Dimensional ◽  
Plane Channel ◽  
Three Dimensional Flow ◽  
Dimensional Flow

Three-dimensional flow past two stationary side-by-side circular cylinders

2022 ◽  
Vol 244 ◽  
pp. 110379
Author(s):  
Weilin Chen ◽  
Chunning Ji ◽  
Md. Mahbub Alam ◽  
Yuhao Yan
Keyword(s):  
Three Dimensional ◽  
Circular Cylinders ◽  
Three Dimensional Flow ◽  
Dimensional Flow ◽  
Flow Past

scholarly journals Three-dimensional flow in the vicinity of a circular cylinder mounted to a flat plate at high Reynolds number

2017 ◽  
Author(s):  
Galih Bangga ◽  
Andri Ashfahani ◽  
Erik Sugianto ◽  
Devy Sa’adiyah ◽  
Tiara Putri ◽  
...  
Keyword(s):  
Reynolds Number ◽  
Circular Cylinder ◽  
Flat Plate ◽  
High Reynolds Number ◽  
Three Dimensional ◽  
Three Dimensional Flow ◽  
Dimensional Flow ◽  
High Reynolds

G403 The relation between three dimensional flow structure in wake and emitted sound at inclined circular cylinder

2001 ◽  
Vol 2001 (0) ◽  
pp. 217
Author(s):  
Yasutake HARAMOTO ◽  
Tomo KINJYO ◽  
Kazuyoshi MATSUZAKI ◽  
Mizue MUNEKATA ◽  
Hideki OHBA
Keyword(s):  
Circular Cylinder ◽  
Flow Structure ◽  
Three Dimensional ◽  
Three Dimensional Flow ◽  
Dimensional Flow

Relation between the three-dimensional flow structure and aerodynamic sound generated from inclined circular cylinder

2004 ◽  
Vol 13 (2) ◽  
pp. 127-132 ◽  
Author(s):  
Mitsuru Shingai ◽  
Yasutake Haramoto ◽  
Kazuyoshi Matsuzaki ◽  
Mizue Munekata ◽  
Hideki Ohba
Keyword(s):  
Circular Cylinder ◽  
Flow Structure ◽  
Three Dimensional ◽  
Three Dimensional Flow ◽  
Aerodynamic Sound ◽  
Dimensional Flow
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