Hostname: page-component-7479d7b7d-767nl Total loading time: 0 Render date: 2024-07-12T00:00:16.559Z Has data issue: false hasContentIssue false
  • English
  • Français

Vortex shedding characteristics of eccentrically mounted prisms

Published online by Cambridge University Press:  04 July 2016

A. S. Ramamurthy ,
K. Subramanya  and
N. Souriyal
A. S. Ramamurthy
Affiliation:
Civil Engineering Department, Sir George Williams University, Montreal
K. Subramanya
Affiliation:
Civil Engineering Department, Sir George Williams University, Montreal
N. Souriyal
Affiliation:
United Aircraft Corporation, Montreal
Get access Rights & Permissions [Opens in a new window]

Extract

Vortex shedding is an important factor in the design of structural elements subject to flow induced vibrations. Several reviews have appeared on this topic. However, in model testing, the vortex shedding frequency of a bluff body may change when the model mounting is eccentric (Fig. 1). This has not been studied in detail. Available information in this regard is restricted to the data of Shaw whose tests were conducted in a towing tank.

This technical note presents experimental data on the vortex shedding characteristics of equiangular prisms (Fig. 2) mounted eccentrically in a wind tunnel. Explanations for the possible flow behaviour are also presented.

Type
Technical notes
Information
The Aeronautical Journal , Volume 79 , Issue 769 , January 1975 , pp. 42 - 44
Copyright
Copyright © Royal Aeronautical Society 1975 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Bearman, P. W., and Wadcock, A. J., The Interaction Between a Pair of Circular Cylinders Normal to a Stream, J. F. Mechs. Vol. 61, Pt. 3, pp. 499–511, 1973.Google Scholar
2. Marris, A. W., A Review on Vortex Streets, Periodic Wakes and Induced Vibration Phenomena, Paper No. 62-WA-106, ASME, 1963.Google Scholar
3. Naudascher, E., On the Role of Eddies in Flow Induced Vibrations, Proc. of the 10th Congress, International Association of Hydraulic Research, Vol. 3, 1966.Google Scholar
4. Ramamurthy, A. S., and No, C. P., Steady Force Coefficients Including Blockage Effects, J. Eng. Mechs. Proc. ASCE, Vol. 99, 4, pp. 225–247, 1974.Google Scholar
5. Ramamurthy, A. S., and Lee, P. M., Wall Effects on Bluff Bodies,J. Sound and Vibration,Vol. 31, 4, pp. 443–451, 1973.Google Scholar
6. Shaw, T. L., Wake Dynamics of Two-Dimensional Structures in Confined Flows, Proc. 14th Congress of International Association of Hydraulic Research, Vol. 2, pp. 41–48, 1971, Paris.Google Scholar
7. Shaw, T. L., Effects of Sidewalls on the Flow Past Bluff Bodies, J. Hyd. Div. Proc. ASCE, Vol. 97, pp. 65–79, 1971.Google Scholar
8. Souriyal, N., Effect of End Gap on the Vortex Shedding Frequency of Prisms, Tech. Report, Civ. Engg., Sir George Williams University, Montreal, 1974.Google Scholar
9. Toebes, G. H., Flow Induced Structural Vibrations, J. Eng., Mechs. Proc. ASCE, Vol. 91, pp. 39–66, 1965.Google Scholar
10. Toebes, G. H. and Ramamurthy, A. S., Energy Transfer Characteristics of Triangular Prisms, Presented at ASCE Structural Engineering Conference, 1969, Kentucky.Google Scholar