Numerical simulation of nonlinear wave interactions with linearly sheared currents

Haifei Chen, Qingping Zou

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

Abstract

A numerical investigation of nonlinear wave interactions with approximately linearly sheared currents is presented. The numerical model is based on the Navier-Stokes Solver, and the Volume of Fluid method is applied to capture the water wave surface. The numerical model is validated with the experimental measurements in the case of a uniform current and a linearly sheared current. The effects of wave nonlinearity and current shear on the water surface profiles are examined. It was found that in the presence of the current shear, the wave crests are sharper and troughs flatter for the following current; while for the opposing current, the troughs tend to be deeper. The effect is more pronounced when the wave steepness increases.

Original languageEnglish
Title of host publicationProceedings of the 25th International Ocean and Polar Engineering Conference
PublisherInternational Society of Offshore and Polar Engineers
Pages538-542
Number of pages5
ISBN (Electronic)9781880653890
Publication statusPublished - 2015
Event25th International Ocean and Polar Engineering Conference 2015 - Kona, Big Island, United States
Duration: 21 Jun 201526 Jun 2015

Conference

Conference25th International Ocean and Polar Engineering Conference 2015
Abbreviated titleISOPE 2015
CountryUnited States
CityKona, Big Island
Period21/06/1526/06/15

Fingerprint

Computer simulation
Numerical models
Water waves
Fluids
Water

Keywords

  • CFD
  • Current shear
  • Linearly sheared currents
  • Nonlinear waves
  • Wave-current interaction

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

Cite this

Chen, H., & Zou, Q. (2015). Numerical simulation of nonlinear wave interactions with linearly sheared currents. In Proceedings of the 25th International Ocean and Polar Engineering Conference (pp. 538-542). International Society of Offshore and Polar Engineers.
Chen, Haifei ; Zou, Qingping. / Numerical simulation of nonlinear wave interactions with linearly sheared currents. Proceedings of the 25th International Ocean and Polar Engineering Conference. International Society of Offshore and Polar Engineers, 2015. pp. 538-542
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Chen, H & Zou, Q 2015, Numerical simulation of nonlinear wave interactions with linearly sheared currents. in Proceedings of the 25th International Ocean and Polar Engineering Conference. International Society of Offshore and Polar Engineers, pp. 538-542, 25th International Ocean and Polar Engineering Conference 2015, Kona, Big Island, United States, 21/06/15.

Numerical simulation of nonlinear wave interactions with linearly sheared currents. / Chen, Haifei; Zou, Qingping.

Proceedings of the 25th International Ocean and Polar Engineering Conference. International Society of Offshore and Polar Engineers, 2015. p. 538-542.

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

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N2 - A numerical investigation of nonlinear wave interactions with approximately linearly sheared currents is presented. The numerical model is based on the Navier-Stokes Solver, and the Volume of Fluid method is applied to capture the water wave surface. The numerical model is validated with the experimental measurements in the case of a uniform current and a linearly sheared current. The effects of wave nonlinearity and current shear on the water surface profiles are examined. It was found that in the presence of the current shear, the wave crests are sharper and troughs flatter for the following current; while for the opposing current, the troughs tend to be deeper. The effect is more pronounced when the wave steepness increases.

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Chen H, Zou Q. Numerical simulation of nonlinear wave interactions with linearly sheared currents. In Proceedings of the 25th International Ocean and Polar Engineering Conference. International Society of Offshore and Polar Engineers. 2015. p. 538-542