The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure
Abstract
In this study; two
dimensional, viscous, incompressible, fully developed and turbulent flows on
the surface of the cylinder placed in a
channel were analyzed using numerical
methods. Momentum and continuity equations were solved numerically
by ANSYS FLUENT program using finite volume method. The effect
of the half cylinder (d = 4.4 mm) placed on the cylinder diameter (D) 44 mm in
different positions (0°, 45°, 90°, 135° and 180°) on the flow structure was
examined. Streamlines and the turbulence kinetic energy contours were drawn for
the Reynolds number 104 value depending on cylinder
diameter. As a result, downstream flow characteristics of cylinders having
semi-circular protrusions placed in different positions were examined and drag
force coefficients (CD) were obtained. It was concluded that the
protrusion on the cylinder placed at different angles changed the flow
structure and controlled the separation.
Keywords
Cylinder,CFD analysis,Drag force coefficient,Flow kontrol
Supporting Institution
Sivas Cumhuriyet University (BAP)
Project Number
M-728
Thanks
Acknowledgments
This work is supported by the Scientific Research Project Fund of Cumhuriyet University under the project number M-728.
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