Periodic Flow about Bluff Bodies. Part 1. Forces on Cylinders and Spheres in a Sinusoidally Oscillating Fluid

The in-line and transverse forces acting on cylinders and the in-line force acting on spheres placed in a sinusoidally oscillating fluid have been measured. The periodic flow was generated in a U-shaped vertical water channel through the use of a pneumatic oscillator. The drag, inertia and the lift...

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Bibliographic Details
Main Authors: Sarpkaya,Turgut, Tuter,Olcay
Format: Report
Language:English
Subjects:
BLUNT BODIES
COEFFICIENTS
CYLINDRICAL BODIES
DRAG
Fluid Mechanics
FORCE(MECHANICS)
HYDRODYNAMICS
INERTIA
LIFT
MODEL TESTS
OSCILLATION
Periodic flow
PERIODIC VARIATIONS
SPHERES
TEST METHODS
VERTICAL ORIENTATION
WATER FLOW
WATER TUNNELS
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Summary:The in-line and transverse forces acting on cylinders and the in-line force acting on spheres placed in a sinusoidally oscillating fluid have been measured. The periodic flow was generated in a U-shaped vertical water channel through the use of a pneumatic oscillator. The drag, inertia and the lift coefficients as well as the total force coefficient have been determined through the use of Fourier analysis and found to depend on a period parameter. (Modified author abstract) Sponsored by National Science Foundation, Washington, D.C.