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Part I: Chordwise Distribution of Fluctuating Pressure

Published online by Cambridge University Press:  07 June 2016

R.H. Wilkinson
R.H. Wilkinson*
Affiliation:
Institute of Oceanographic Sciences, Crossway, Taunton, Somerset
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Summary

The fluctuating loading on a cylindrical bluff body due to vortex shedding increases if the body is capable of vibration. This is a result of amplification of the fluctuating pressures around a two-dimensional section of the body together with an improvement of the spanwise correlation of the vortex shedding. Measurement of the fluctuating forces on the cylinder during this process gives no guide as to the relative magnitude of these effects. In this paper, root mean square fluctuating pressure distributions and pressure correlations across a chord are presented for a square cylinder with front face normal to the approach flow whilst stationary and during forced vibration. The fluctuating lift coefficient for a two-dimensional section of the cylinder and its maximum amplification during vibration are calculated.

Type
Fluctuating Pressures on an Oscillating Square Prism
Information
Aeronautical Quarterly , Volume 32 , Issue 2 , May 1981 , pp. 97 - 110
Copyright
Copyright © Royal Aeronautical Society. 1981

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References

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