Energy dissipation of wave-uniform current over a rigid porous media with finite thickness

Jing-Hua Lin, Hung Chu Hsu, Jin-Li Yu, Yang Yih Chen, Guan Yu Chen

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

1 Citation (Scopus)

Abstract

The linear wave theory and the nonlinear-unsteady porous flow model are applied to analyze the energy dissipation and the bed pore water pressure induced by the interaction of wave, uniform current and porous bottom without considering the nonlinear waves and the viscosity effect inside the boundary layer. In this model, the linear, inertial and turbulent resistances are combined into a linearized resistance coefficient and the present system can be analyzed by a linear boundary value problem. The numerical result is quite agreement with the existing experimental data. It shows that the energy dissipation is reduced by the Doppler shift and the distribution of energy loss moves to the lower relative water depth region in the wave-following current. On the other hand, the bed pore water pressure in the wave-following current is always lager than that in the pure wave and the wave-opposing current.

Original languageEnglish
Title of host publicationProceedings of the 34th International Conference on Coastal Engineering, ICCE 2014
EditorsPatrick Lynett
PublisherAmerican Society of Civil Engineers (ASCE)
ISBN (Electronic)9780989661126
Publication statusPublished - 2014 Jan 1
Event34th International Conference on Coastal Engineering, ICCE 2014 - Seoul, Korea, Republic of
Duration: 2014 Jun 152014 Jun 20

Publication series

NameProceedings of the Coastal Engineering Conference
Volume2014-January
ISSN (Print)0161-3782

Other

Other34th International Conference on Coastal Engineering, ICCE 2014
CountryKorea, Republic of
CitySeoul
Period14-06-1514-06-20

Fingerprint

energy dissipation
Porous materials
porous medium
Energy dissipation
porewater
nonlinear wave
Water
Beer
Doppler effect
water depth
viscosity
Boundary value problems
boundary layer
Boundary layers
Viscosity
energy

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Ocean Engineering
  • Oceanography

Cite this

Lin, J-H., Hsu, H. C., Yu, J-L., Chen, Y. Y., & Chen, G. Y. (2014). Energy dissipation of wave-uniform current over a rigid porous media with finite thickness. In P. Lynett (Ed.), Proceedings of the 34th International Conference on Coastal Engineering, ICCE 2014 (Proceedings of the Coastal Engineering Conference; Vol. 2014-January). American Society of Civil Engineers (ASCE).
Lin, Jing-Hua ; Hsu, Hung Chu ; Yu, Jin-Li ; Chen, Yang Yih ; Chen, Guan Yu. / Energy dissipation of wave-uniform current over a rigid porous media with finite thickness. Proceedings of the 34th International Conference on Coastal Engineering, ICCE 2014. editor / Patrick Lynett. American Society of Civil Engineers (ASCE), 2014. (Proceedings of the Coastal Engineering Conference).
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title = "Energy dissipation of wave-uniform current over a rigid porous media with finite thickness",
abstract = "The linear wave theory and the nonlinear-unsteady porous flow model are applied to analyze the energy dissipation and the bed pore water pressure induced by the interaction of wave, uniform current and porous bottom without considering the nonlinear waves and the viscosity effect inside the boundary layer. In this model, the linear, inertial and turbulent resistances are combined into a linearized resistance coefficient and the present system can be analyzed by a linear boundary value problem. The numerical result is quite agreement with the existing experimental data. It shows that the energy dissipation is reduced by the Doppler shift and the distribution of energy loss moves to the lower relative water depth region in the wave-following current. On the other hand, the bed pore water pressure in the wave-following current is always lager than that in the pure wave and the wave-opposing current.",
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}

Lin, J-H, Hsu, HC, Yu, J-L, Chen, YY & Chen, GY 2014, Energy dissipation of wave-uniform current over a rigid porous media with finite thickness. in P Lynett (ed.), Proceedings of the 34th International Conference on Coastal Engineering, ICCE 2014. Proceedings of the Coastal Engineering Conference, vol. 2014-January, American Society of Civil Engineers (ASCE), 34th International Conference on Coastal Engineering, ICCE 2014, Seoul, Korea, Republic of, 14-06-15.

Energy dissipation of wave-uniform current over a rigid porous media with finite thickness. / Lin, Jing-Hua; Hsu, Hung Chu; Yu, Jin-Li; Chen, Yang Yih; Chen, Guan Yu.

Proceedings of the 34th International Conference on Coastal Engineering, ICCE 2014. ed. / Patrick Lynett. American Society of Civil Engineers (ASCE), 2014. (Proceedings of the Coastal Engineering Conference; Vol. 2014-January).

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

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AB - The linear wave theory and the nonlinear-unsteady porous flow model are applied to analyze the energy dissipation and the bed pore water pressure induced by the interaction of wave, uniform current and porous bottom without considering the nonlinear waves and the viscosity effect inside the boundary layer. In this model, the linear, inertial and turbulent resistances are combined into a linearized resistance coefficient and the present system can be analyzed by a linear boundary value problem. The numerical result is quite agreement with the existing experimental data. It shows that the energy dissipation is reduced by the Doppler shift and the distribution of energy loss moves to the lower relative water depth region in the wave-following current. On the other hand, the bed pore water pressure in the wave-following current is always lager than that in the pure wave and the wave-opposing current.

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Lin J-H, Hsu HC, Yu J-L, Chen YY, Chen GY. Energy dissipation of wave-uniform current over a rigid porous media with finite thickness. In Lynett P, editor, Proceedings of the 34th International Conference on Coastal Engineering, ICCE 2014. American Society of Civil Engineers (ASCE). 2014. (Proceedings of the Coastal Engineering Conference).