Vortex generation in water waves propagating over a submerged rectangular dike

C. M. Dong, Ching-Jer Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The unsteady, two-dimensional Navier-Stokes equations and the exact free surface boundary conditions have been solved to simulate the flow separation and the vortex generation in water waves propagating over a submerged rectangular dike. The computed water surface elevations at different locations have been compared with experimental ones to verify the accuracy of the numerical method. The vorticity of the flow near the dike are calculated from the numerical velocity fields. Effects of the Keulegan-Carpenter number on the vortices is investigated. The wave forces on the dike are also determined. It was found that the wave force nearly reaches its highest value when the wave crest is above the dike.

Original languageEnglish
Title of host publicationProceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999
EditorsJ S Chung, M Olagnon, C H Kim, A Francescutto, J S Chung, M Olagnon, C H Kim, A Francescutto
PublisherInternational Society of Offshore and Polar Engineers
Pages388-395
Number of pages8
ISBN (Print)1880653427
Publication statusPublished - 1999
EventProceedings of the 1999 Ninth International Offshore and Polar Engineering Conference - Brest, France
Duration: 1999 May 301999 Jun 4

Other

OtherProceedings of the 1999 Ninth International Offshore and Polar Engineering Conference
CountryFrance
CityBrest
Period99-05-3099-06-04

Fingerprint

Levees
water wave
Water waves
vortex
dike
Vortex flow
wave force
Flow separation
Navier-Stokes equations
Vorticity
vorticity
numerical method
Navier Stokes equations
Numerical methods
boundary condition
Boundary conditions
surface water
Water

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)
  • Engineering(all)
  • Environmental Science(all)

Cite this

Dong, C. M., & Huang, C-J. (1999). Vortex generation in water waves propagating over a submerged rectangular dike. In J. S. Chung, M. Olagnon, C. H. Kim, A. Francescutto, J. S. Chung, M. Olagnon, C. H. Kim, ... A. Francescutto (Eds.), Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999 (pp. 388-395). International Society of Offshore and Polar Engineers.
Dong, C. M. ; Huang, Ching-Jer. / Vortex generation in water waves propagating over a submerged rectangular dike. Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999. editor / J S Chung ; M Olagnon ; C H Kim ; A Francescutto ; J S Chung ; M Olagnon ; C H Kim ; A Francescutto. International Society of Offshore and Polar Engineers, 1999. pp. 388-395
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abstract = "The unsteady, two-dimensional Navier-Stokes equations and the exact free surface boundary conditions have been solved to simulate the flow separation and the vortex generation in water waves propagating over a submerged rectangular dike. The computed water surface elevations at different locations have been compared with experimental ones to verify the accuracy of the numerical method. The vorticity of the flow near the dike are calculated from the numerical velocity fields. Effects of the Keulegan-Carpenter number on the vortices is investigated. The wave forces on the dike are also determined. It was found that the wave force nearly reaches its highest value when the wave crest is above the dike.",
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Dong, CM & Huang, C-J 1999, Vortex generation in water waves propagating over a submerged rectangular dike. in JS Chung, M Olagnon, CH Kim, A Francescutto, JS Chung, M Olagnon, CH Kim & A Francescutto (eds), Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999. International Society of Offshore and Polar Engineers, pp. 388-395, Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference, Brest, France, 99-05-30.

Vortex generation in water waves propagating over a submerged rectangular dike. / Dong, C. M.; Huang, Ching-Jer.

Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999. ed. / J S Chung; M Olagnon; C H Kim; A Francescutto; J S Chung; M Olagnon; C H Kim; A Francescutto. International Society of Offshore and Polar Engineers, 1999. p. 388-395.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - The unsteady, two-dimensional Navier-Stokes equations and the exact free surface boundary conditions have been solved to simulate the flow separation and the vortex generation in water waves propagating over a submerged rectangular dike. The computed water surface elevations at different locations have been compared with experimental ones to verify the accuracy of the numerical method. The vorticity of the flow near the dike are calculated from the numerical velocity fields. Effects of the Keulegan-Carpenter number on the vortices is investigated. The wave forces on the dike are also determined. It was found that the wave force nearly reaches its highest value when the wave crest is above the dike.

AB - The unsteady, two-dimensional Navier-Stokes equations and the exact free surface boundary conditions have been solved to simulate the flow separation and the vortex generation in water waves propagating over a submerged rectangular dike. The computed water surface elevations at different locations have been compared with experimental ones to verify the accuracy of the numerical method. The vorticity of the flow near the dike are calculated from the numerical velocity fields. Effects of the Keulegan-Carpenter number on the vortices is investigated. The wave forces on the dike are also determined. It was found that the wave force nearly reaches its highest value when the wave crest is above the dike.

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Dong CM, Huang C-J. Vortex generation in water waves propagating over a submerged rectangular dike. In Chung JS, Olagnon M, Kim CH, Francescutto A, Chung JS, Olagnon M, Kim CH, Francescutto A, editors, Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999. International Society of Offshore and Polar Engineers. 1999. p. 388-395