A three-dimensional (3D) numerical two-phase flow model based on solving unsteady Reynolds-averaged Navier–Stokes (URANS) equations has been used to simulate breaking waves and steep waves past a vertical cylinder on a 1:10 slope. The volume of fluid (VOF) method is employed to capture the free surface and the k–ω shear–stress transport (k–ω SST) turbulence model is used to simulate the turbulence effects. Mesh and time-step refinement studies have been conducted. The numerical results of wave forces on the structure are compared with the experimental data (Irschik et al., 2004, “Breaking Wave Loads on a Slender Pile in Shallow Water,” Coastal Engineering, Vol. 4, World Scientific, Singapore, pp. 568–581) to validate the numerical model, and the numerical results are in good agreement with the measured data. The wave forces on the structure at different Keulegan–Carpenter (KC) numbers are discussed in terms of the slamming force. The secondary load cycles are observed after the wave front past the structure. The dynamic pressure and velocity distribution, as well as the characteristics of the vortices around the structure at four important time instants, are studied.
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August 2019
Research-Article
Numerical Simulations of Breaking Waves and Steep Waves Past a Vertical Cylinder at Different Keulegan–Carpenter Numbers
Shengnan Liu,
Shengnan Liu
Department of Mechanical and Structural
Engineering and Materials Science,
University of Stavanger,
Stavanger 4021, Norway
e-mail: shengnan.liu@uis.no
Engineering and Materials Science,
University of Stavanger,
Stavanger 4021, Norway
e-mail: shengnan.liu@uis.no
1Corresponding author.
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Muk Chen Ong,
Muk Chen Ong
Professor
Department of Mechanical and Structural
Engineering and Materials Science,
University of Stavanger,
Stavanger 4021, Norway
e-mail: muk.c.ong@uis.no
Department of Mechanical and Structural
Engineering and Materials Science,
University of Stavanger,
Stavanger 4021, Norway
e-mail: muk.c.ong@uis.no
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Charlotte Obhrai
Charlotte Obhrai
Department of Mechanical and Structural
Engineering and Materials Science,
University of Stavanger,
Stavanger 4021, Norway
e-mail: charlotte.obhrai@uis.no
Engineering and Materials Science,
University of Stavanger,
Stavanger 4021, Norway
e-mail: charlotte.obhrai@uis.no
Search for other works by this author on:
Shengnan Liu
Department of Mechanical and Structural
Engineering and Materials Science,
University of Stavanger,
Stavanger 4021, Norway
e-mail: shengnan.liu@uis.no
Engineering and Materials Science,
University of Stavanger,
Stavanger 4021, Norway
e-mail: shengnan.liu@uis.no
Muk Chen Ong
Professor
Department of Mechanical and Structural
Engineering and Materials Science,
University of Stavanger,
Stavanger 4021, Norway
e-mail: muk.c.ong@uis.no
Department of Mechanical and Structural
Engineering and Materials Science,
University of Stavanger,
Stavanger 4021, Norway
e-mail: muk.c.ong@uis.no
Charlotte Obhrai
Department of Mechanical and Structural
Engineering and Materials Science,
University of Stavanger,
Stavanger 4021, Norway
e-mail: charlotte.obhrai@uis.no
Engineering and Materials Science,
University of Stavanger,
Stavanger 4021, Norway
e-mail: charlotte.obhrai@uis.no
1Corresponding author.
Contributed by the Ocean, Offshore, and Arctic Engineering Division of ASME for publication in the JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING. Manuscript received March 31, 2018; final manuscript received March 18, 2019; published online April 26, 2019. Assoc. Editor: Felice Arena.
J. Offshore Mech. Arct. Eng. Aug 2019, 141(4): 041806 (12 pages)
Published Online: April 26, 2019
Article history
Received:
March 31, 2018
Revised:
March 18, 2019
Citation
Liu, S., Ong, M. C., and Obhrai, C. (April 26, 2019). "Numerical Simulations of Breaking Waves and Steep Waves Past a Vertical Cylinder at Different Keulegan–Carpenter Numbers." ASME. J. Offshore Mech. Arct. Eng. August 2019; 141(4): 041806. https://doi.org/10.1115/1.4043278
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