TECHNICAL NOTES
May 1, 2009

Waves Generated by a Pressure Disturbance Moving in a Channel with a Variable Cross-Sectional Topography

Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 135, Issue 3

Abstract

The present work is a numerical investigation on waves generated by a pressure disturbance moving at constant speed in a channel with a variable cross-channel depth profile. The channel profile, which is uniform in the along-channel direction, has a deep trench located along the centerline of the channel, and shallow banks near the channel walls. Characteristic features upstream and downstream of the moving pressure disturbance are related to the parameters of the pressure disturbance and the cross-channel profile. Our numerical investigation is based on the COULWAVE long wave model.

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Acknowledgments

This work has received support from the Research Council of Norway through a grant to the program “Modelling of currents and waves for sea structures.” The writers are indebted to Patrick Lynett for providing us with the latest version of the COULWAVE model, and to Philip L.-F. Liu and Tso-Ren Wu for guidance.

References

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Published In

Go to Journal of Waterway, Port, Coastal, and Ocean Engineering
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 135Issue 3May 2009
Pages: 120 - 123

History

Received: Mar 12, 2007
Accepted: Jan 9, 2009
Published online: May 1, 2009
Published in print: May 2009

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Authors

Affiliations

Tomas Torsvik [email protected]
Postdoctorate, Bergen Center for Computational Science, Univ. of Bergen, Høyteknologisenteret, Thormøhlensgate 55, N-5008 Bergen, Norway (corresponding author). E-mail: [email protected]
Geir Pedersen
Professor, Dept. of Mathematics, Univ. of Oslo, P.O. Box 1053, Blindern, N-0316 Oslo, Norway. E-mail: [email protected]
Kristian Dysthe [email protected]
Professor, Dept. of Mathematics, Univ. of Bergen, Johannes Brunsg 12, N-5008 Bergen, Norway. E-mail: [email protected]

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