For the estimation of wave loads on offshore structures, relevant extreme wave events need to be identified. In order to achieve this, long-term wave simulations of relatively large scales need to be performed. Computational fluid dynamics (CFD) based numerical wave tanks with an interface capturing two-phase flow approach typically require too large computational resources. In this paper, a three-dimensional (3D) nonhydrostatic wave model is presented, which solves the Navier–Stokes equations and employs an interface tracking method based on the continuity of the horizontal velocities along the vertical water column. With this approach, relatively fewer cells are needed in the vicinity of the air–water interface compared to CFD-based numerical wave tanks. The numerical model solves the governing equations on a rectilinear grid, which allows for the employment of high-order finite differences. The capabilities of the new wave model are presented by comparing the wave propagation in the tank with the CFD approach in a two-dimensional (2D) simulation. Further, a 3D simulation is carried out to determine the wave forces on a vertical cylinder. The calculated wave forces using the new approach are compared to those obtained using the CFD approach and experimental data. It is seen that the new approach provides a similar accuracy to that from the CFD approach while providing a large reduction in the time taken for the simulation. The gain is calculated to be about 4.5 for the 2D simulation and about 7.1 for the 3D simulation.
Skip Nav Destination
Article navigation
August 2019
Research-Article
Efficient Wave Modeling Using Nonhydrostatic Pressure Distribution and Free Surface Tracking on Fixed Grids
Hans Bihs,
Hans Bihs
Department of Civil and
Environmental Engineering,
Norwegian University of Science
and Technology—NTNU,
Trondheim 7491, Norway
e-mail: hans.bihs@ntnu.no
Environmental Engineering,
Norwegian University of Science
and Technology—NTNU,
Trondheim 7491, Norway
e-mail: hans.bihs@ntnu.no
1Corresponding author.
Search for other works by this author on:
Arun Kamath,
Arun Kamath
Department of Civil and
Environmental Engineering,
Norwegian University of Science
and Technology—NTNU,
Trondheim 7491, Norway
e-mail: arun.kamath@ntnu.no
Environmental Engineering,
Norwegian University of Science
and Technology—NTNU,
Trondheim 7491, Norway
e-mail: arun.kamath@ntnu.no
Search for other works by this author on:
Ankit Aggarwal,
Ankit Aggarwal
Department of Civil and
Environmental Engineering,
Norwegian University of Science
and Technology—NTNU,
Trondheim 7491, Norway
e-mail: ankit.aggarwal@ntnu.no
Environmental Engineering,
Norwegian University of Science
and Technology—NTNU,
Trondheim 7491, Norway
e-mail: ankit.aggarwal@ntnu.no
Search for other works by this author on:
Csaba Pakozdi
Csaba Pakozdi
Search for other works by this author on:
Hans Bihs
Department of Civil and
Environmental Engineering,
Norwegian University of Science
and Technology—NTNU,
Trondheim 7491, Norway
e-mail: hans.bihs@ntnu.no
Environmental Engineering,
Norwegian University of Science
and Technology—NTNU,
Trondheim 7491, Norway
e-mail: hans.bihs@ntnu.no
Arun Kamath
Department of Civil and
Environmental Engineering,
Norwegian University of Science
and Technology—NTNU,
Trondheim 7491, Norway
e-mail: arun.kamath@ntnu.no
Environmental Engineering,
Norwegian University of Science
and Technology—NTNU,
Trondheim 7491, Norway
e-mail: arun.kamath@ntnu.no
Ankit Aggarwal
Department of Civil and
Environmental Engineering,
Norwegian University of Science
and Technology—NTNU,
Trondheim 7491, Norway
e-mail: ankit.aggarwal@ntnu.no
Environmental Engineering,
Norwegian University of Science
and Technology—NTNU,
Trondheim 7491, Norway
e-mail: ankit.aggarwal@ntnu.no
Csaba Pakozdi
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 July 27, 2018; final manuscript received March 8, 2019; published online April 8, 2019. Assoc. Editor: Xinshu Zhang.
J. Offshore Mech. Arct. Eng. Aug 2019, 141(4): 041805 (6 pages)
Published Online: April 8, 2019
Article history
Received:
July 27, 2018
Revised:
March 8, 2019
Citation
Bihs, H., Kamath, A., Aggarwal, A., and Pakozdi, C. (April 8, 2019). "Efficient Wave Modeling Using Nonhydrostatic Pressure Distribution and Free Surface Tracking on Fixed Grids." ASME. J. Offshore Mech. Arct. Eng. August 2019; 141(4): 041805. https://doi.org/10.1115/1.4043179
Download citation file:
Get Email Alerts
Cited By
Hydrodynamic Characteristics of Bridge Cofferdam Under Multidirectional Focused Waves
J. Offshore Mech. Arct. Eng (December 2024)
A Practical Procedure for Fatigue Assessment of Mooring Line Chains With Pitting Corrosion
J. Offshore Mech. Arct. Eng (December 2024)
Adaptive Ensemble of Multi-Kernel Gaussian Process Regressions Based on Heuristic Model Screening for Nonparametric Modeling of Ship Maneuvering Motion
J. Offshore Mech. Arct. Eng (February 2025)
Numerical Research on Impacting Load and Structural Response for a Model Experiment of High-speed Craft
J. Offshore Mech. Arct. Eng
Related Articles
Computational Fluid Dynamics Investigations of Breaking Focused Wave-Induced Loads on a Monopile and the Effect of Breaker Location
J. Offshore Mech. Arct. Eng (April,2020)
Benchmarking of a Computational Fluid Dynamics-Based Numerical Wave Tank for Studying Wave Load Effects on Fixed and Floating Offshore Structures
J. Offshore Mech. Arct. Eng (June,2017)
Identification and Investigation of Extreme Events Using an Arbitrary Lagrangian–Eulerian Approach With a Laplace Equation Solver and Coupling to a Navier–Stokes Solver
J. Offshore Mech. Arct. Eng (December,2023)
Computational Fluid Dynamics Study of the Dead Water Problem
J. Fluids Eng (March,2018)
Related Proceedings Papers
Related Chapters
Computational Modeling of Dynamic Planing Forces
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
An Experimental Comparison of the In-Air and Underwater Damping Properties of Composite Cylinders
M3D III: Mechanics and Mechanisms of Material Damping
Experimental Investigation of Mortar Compressive Strength Using 5.08 cm. Cubes and 7.62 cm. × 15.24 cm. Cylinders
Masonry: Components to Assemblages