Resonance properties of tidal channels with multiple retention basins: role of adjacent sea

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• 作者：Pieter C. Roos (1)
  Henk M. Schuttelaars (2)
  
  1. Water Engineering and Management ; University of Twente ; P.O. Box 217 ; 7500 ; AE ; Enschede ; The Netherlands
  2. Delft Institute of Applied Mathematics ; Delft University of Technology ; P.O. Box 5031 ; 2600 ; GA ; Delft ; The Netherlands
  
• 关键词：Tidal channel ; Retention basins ; Resonance ; Radiative damping ; Idealised process ; based modelling
• 刊名：Ocean Dynamics
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：65
• 期：3
• 页码：311-324
• 全文大小：1,331 KB
• 参考文献：1. Alebregtse, NC, Swart, HE (2014) Effect of a secondary channel on the non-linear tidal dynamics in a semi-enclosed channel: a simple model. Ocean Dyn 64: pp. 573-585 CrossRef
  2. Alebregtse, NC, Swart, HE, Schuttelaars, HM (2013) Resonance characteristics of tides in branching channels. J Fluid Mech 728: pp. R3 CrossRef
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  9. Miles, JW (1971) Resonant response of harbours: an equivalent-circuit analysis. J Fluid Mech 46: pp. 241-265 CrossRef
  10. Roos, PC, Schuttelaars, HM (2011) Influence of topography on tide propagation and amplification in semi-enclosed basins. Ocean Dyn 61: pp. 21-38 CrossRef
  11. Stronkhorst J, Mulder J (2014) Considerations on managed realignment in The Netherlands. In: Managed realignment: a viable long-term coastal management strategy?, SpringerBriefs in Environmental Science, Springer Netherlands, pp 61鈥?8. doi:10.1007/978-94-017-9029-1_5
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  13. Zimmerman, JTF (1992) On the Lorentz linearization of a nonlinearly damped tidal Helmholtz oscillator. Proc Kon Ned Akad v Wetensch 95: pp. 127-145
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Oceanography
  Geophysics and Geodesy
  Meteorology and Climatology
  Fluids
  Structural Foundations and Hydraulic Engineering
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1616-7228

文摘

We present an idealised model of the tidal response in a main channel with multiple secondary basins, co-oscillating with an adjacent sea. The sea is represented as a semi-infinite strip of finite width, anywhere between the limits of a channel extension (narrow) and a half-plane (wide). The sea geometry controls the extent to which radiative damping takes place and hence the type of conditions that effectively apply at the channel mouth. These conditions range between the two extremes of prescribing elevation (deep sea limit) and prescribing the incoming wave (sea as channel extension of the same depth, as done in an earlier study). The closer to this first extreme, the stronger the oscillations in the secondary basins may feed back onto the channel mouth and thus produce an amplified or weakened response in the system as a whole. The possibly resonant response is explained by analysing the additional waves that emerge on either side of the entrance of the secondary basin. Finally, we show that the simultaneous presence of two secondary basins may amplify or weaken the accumulated responses to these basins individually.