Control and creation of tidal residual current in a semi-enclosed bay by bottom roughness with directional resistance characteristics

T. Komatsu, S. Yano, S. Gug, N. Kohashi

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

We have proposed a new method to activate the tidal exchange in a semi-enclosed bay by creation and control of tidal residual current. In this new method, the tidal current is produced and controlled by unsymmetric bottom structures, which change characteristics of resistance according to flow direction. In this study, the tidal current and particle-tracking simulations for various arrangements of bottom roughness in a semi-enclosed model bay were carried out. As a result of numerical experiments, it becomes clear that it is possible to control the tidal residual current and to activate the tidal exchange by only operation of bottom roughness.

Original languageEnglish
Pages653-658
Number of pages6
Publication statusPublished - 1997
EventProceedings of the 1997 27th Congress of the International Association of Hydraulic Research, IAHR. Part D - San Francisco, CA, USA
Duration: Aug 10 1997Aug 15 1997

Other

OtherProceedings of the 1997 27th Congress of the International Association of Hydraulic Research, IAHR. Part D
CitySan Francisco, CA, USA
Period8/10/978/15/97

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Komatsu, T., Yano, S., Gug, S., & Kohashi, N. (1997). Control and creation of tidal residual current in a semi-enclosed bay by bottom roughness with directional resistance characteristics. 653-658. Paper presented at Proceedings of the 1997 27th Congress of the International Association of Hydraulic Research, IAHR. Part D, San Francisco, CA, USA, .