Numerical Study Of Oscillatory Flow Past Two Cylinders In Oblique
Arrangement
Author(s)
P. Anagnostopoulos, A. Koutras & S. Seitanis
Abstract
Numerical study of oscillatory flow past two
cylinders in oblique arrangement
P. Anagnostopoulos, A. Koutras and S. Seitanis
University of Thessaloniki, Department of Civil Engineering,
Greece
Abstract
The results of a numerical study of the viscous oscillating flow around a pair of
circular cylinders are presented herein, for a constant frequency parameter,P, equal
to 50, and Keulegan-Carpenter numbers, KC, ranging between 0.2 and 10. The
cylinders were placed at an angle equal to 45 degrees with respect to the oncoming
flow, for a pitch to diameter ratio, PID, equal to 1.41. The finite-element method
was employed for the solution of the Navier-Stokes equations, in the formulation
where the stream function and the vorticity are the field variables. The streamlines
and vorticity contours generated from the solution were used for the flow
visualization. For the various Keulegan-Carpenter numbers examined the traces of
the hydrodynamic forces exerted on the cylinders are also presented.
1 Introd
Keywords
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