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    Wang, Gang Zheng, Jinhai Liang, Qiuhua and Zheng, Yanna 2014. Analytical solutions for oscillations in a harbor with a hyperbolic-cosine squared bottom. Ocean Engineering, Vol. 83, p. 16.


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    Chua, Lloyd H. and Shuy, E. B. 2008. Laboratory Studies on the Coupled Oscillations between an Internal Density Interface and a Shear Layer. Journal of Engineering Mechanics, Vol. 134, Issue. 4, p. 348.


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    Mattioli, F. 1996. Dynamic response of the Lido channel to wave motion in the presence of movable barriers. Il Nuovo Cimento C, Vol. 19, Issue. 1, p. 177.


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  • Journal of Fluid Mechanics, Volume 282
  • January 1995, pp. 203-217

Harbour oscillations generated by shear flow

  • A. L. Fabrikant (a1)
  • DOI: http://dx.doi.org/10.1017/S0022112095000103
  • Published online: 01 April 2006
Abstract

A new mechanism that could be responsible for excitation of long-period oscillations in partially enclosed harbours is discussed. This mechanism is based on the interaction between a shear flow and the harbour-basin natural mode and does not suppose any external exciting forces caused by wind waves, tsunami, etc. The growth rate of harbour oscillations is found in terms of a plane-wave reflection coefficient integrated on the wavenumber spectrum of the oscillating outflow field near the harbour entrance. Analytical considerations for simple shear flows (vortex sheet and jet) show that the growth rate changes its sign depending on the ratio of oscillation frequency to flow speed.

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Journal of Fluid Mechanics
  • ISSN: 0022-1120
  • EISSN: 1469-7645
  • URL: /core/journals/journal-of-fluid-mechanics
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