Investigation of wall induced modifications to vortex shedding from a circular cylinder
Abstract
In this paper the influence of a wall on vortex shedding frequency, geometrical pattern, and velocity field is investigated. Frequency measurements were carried out with three circular cylinders at Reynolds numbers of 2860, 3820, and 7640. Mean and fluctuating velocities at several traverses were also measured at Re equals 3820 both for an isolated cylinder and for an arranagement with a gap from the wall equal to one cylinder diameter. The mofifications of the wake pattern are shown in several figures. It is also shown that the proximity of the wall induces a slight increase of vortex shedding frequency.
- Publication:
-
ASME Journal of Fluids Engineering
- Pub Date:
- December 1982
- Bibcode:
- 1982ATJFE.104..518A
- Keywords:
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- Bluff Bodies;
- Circular Cylinders;
- Flow Measurement;
- Vortex Shedding;
- Wakes;
- Wall Flow;
- Flow Geometry;
- Flow Velocity;
- Frequency Measurement;
- Hot-Film Anemometers;
- Low Reynolds Number;
- Fluid Mechanics and Heat Transfer