A Multiphysics Multiscale 3-D Computational Wave Basin Model for Wave Impact Load on a Cylindrical Structure

Solomon C. Yim; Wenbin Zhang

doi:10.20965/jdr.2009.p0450

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JDR Vol.4 No.6 pp. 450-461

(2009)

doi: 10.20965/jdr.2009.p0450

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A Multiphysics Multiscale 3-D Computational Wave Basin Model for Wave Impact Load on a Cylindrical Structure

Solomon C. Yim and Wenbin Zhang

Ocean Engineering Program Oregon State University Corvallis, OR 97331, USA

Received:

July 27, 2009

Accepted:

October 29, 2009

Published:

December 1, 2009

Keywords:

multiphysics, multiscale, fluid-structure interaction

Abstract

A multiphysics multiscale finite-element based nonlinear computational wave basin (CWB) model is developed using LS-DYNA. Its predictive capability is calibrated using a large-scale fluid-structure interaction experiment conducted in a 3-dimensional wave basin to determine wave impact on a cylindrical structure. This study focuses on evaluating CWB accuracy using two wave excitation conditions — plane and focused solitary waves — and two cylinder arrangements — single and multiple cylinders. Water surface elevation and water particle velocity are predicted numerically for the fluid domain, obtaining horizontal force, overturning moment, and dynamic pressure on the cylindrical structure and calibrated against experimental measurement. The CWB model predicts wave motion characteristics — water surface elevation and velocity, and integrated structural response — horizontal force and overturning moment, for the given wave conditions well. Computation time increases and the predictive accuracy decreases as nonlinear fluid-structure interaction becomes increasingly complex. A study of computation settings for improving computation performance showed that a high-performance parallel-computing hardware platform is needed to model details of highly nonlinear physics of fluid flow including wave breaking and turbulence.

Cite this article as:

S. Yim and W. Zhang, “A Multiphysics Multiscale 3-D Computational Wave Basin Model for Wave Impact Load on a Cylindrical Structure,” J. Disaster Res., Vol.4 No.6, pp. 450-461, 2009.

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References

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This article is published under a Creative Commons Attribution-NoDerivatives 4.0 Internationa License.

[1] [1] T. Belytschko, D. F. Flanagran, and J. M. Kennedy, “Finite Element Method with User-Controlled Meshes for Fluid-Structure Interactions,” Computer Methods in Applied Mechanics and Engineering, Vol.33, pp. 689-723, 1982.

[2] [2] D. Benson, “An Efficient Accurate, Simple ALE Method for Non Linear Finite Element Programs,” Computer Methods in Applied Mechanics and Engineering, Vol.33, pp. 689-723, 1989.

[3] [3] R. G. Dean and R. A. Dalrymple, “Water Wave Mechanics for Engineers and Scientists,” Advanced Series on Ocean Engineering, Vol.2, Prentice-Hall, 1984.

[4] [4] J. Donea, J. Ponthot, A. Rodriguez-Ferran, and A. Huerta, “Arbitrary Lagrangian—Eulerian Methods,” Encyclopedia of Computational Mechanics, Vol.3, Wiley, 2004.

[5] [5] J. O. Hallquist, “Simplified Arbitrary Lagrangian-Eulerian,” LS-DYNA Theory Manual, pp. 215-242, 2006.

[6] [6] C. W. Hirt, A. A. Amsdern, and H. K. Cook, “An Arbitrary Eulerian Lagrangian Method for All Flow Speeds,” J. Comput. Phys, Vol.14, pp. 229-253, 1974.

[7] [7] S. A. Hughes, “Physical models and Laboratory techniques in Coastal Engineering,” Advanced Series on Ocean Engineering, Vol.7, World Scientific, 2005.

[8] [8] T. J. R. Hughes, W. K. Liu, and T. K. Zimmermann, “Lagrangian-Eulerian Finite Element Formulation for Incompressible Viscous Flows,” Computer Methods in Applied Mechanics and Engineering, Vol.29, pp. 329-349, 1981.

[9] [9] J. K. Jung, “Using a Finite-Element Based Software LS-DYNA for Modeling and Simulation of Nonlinear Contact/Impact Structural and Fluid Mechanics Problems,” Masters Project, Corvallis, OR, Oregon State University, 2006.

[10] [10] Y. Lin, “Performance Evaluation on the ALE Formulation in MPP LS-DYNA,” 7th International LS-DYNA Users Conference, 2002.

[11] [11] W. K. Liu and A. Huerta, “Viscous Flows for Large Free Surface Motion,” Computer Methods in Applied Mechanics and Engineering, Vol.69, pp. 277-324, 1988.

[12] [12] Livermore Software Technology Corporation (LSTC), “LS-DYNA Keyword User’s Manual,” Vol.1 Version 971, 2007.

[13] [13] W. Mo, K. Irschik, H. Oumeraci, and P. L. Liu, “A 3D Numerical Model for Computing Non-breaking Wave Forces on Slender Piles,” Journal of Engineering Mathematics, Vol.58, pp. 19-30, 2006.

[14] [14] A. Nicolas, “ALE Modeling of Surface Waves,” 6th European LS-DYNA Users’ Conference, 2007.

[15] [15] W. F. Noh, “A Time Dependent Two Space Dimensional Coupled Eulerian Lagrangian Code,” Fundamental Methods in Hydrodynamics, Academic Press, New York, Vol.3, pp. 117-179, 1964.

[16] [16] M. Souli, L. Olovsson, and I. Do, “ALE and Fluid-Structure Interaction Capabilities in LS-DYNA,” 7th International LS-DYNA Users Conference, 2002.

[17] [17] I. Stenius and A. Rosen, “FE-Modelling of Hydrodynamic Hull-Water Impact Loads,” 6th European LS-DYNA Users’ Conference, 2007.

[18] [18] S. Tokura and T. Ida, “Simulation of Wave-Dissipating Mechanism on Submerged Structure using Fluid-Structure Coupling Capability in LS-DYNA,” 5th European LS-DYNA Users Conference, 2005.

[19] [19] J. Wang and H. Chen, “Fluid Structure Interaction for Immersed Bodies,” 6th European LS-DYNA Users’ Conference, 2007.

[20] [20] P. Watts, M. Iouslalen, S. Grilli, M. ASCE, F. Shi, and J. T. Kirby, “Numerical Simulation of the December 26, 2004 Indian Ocean Tsunami using a Higher-order Boussinesq Model,” Fifth International Symposium WAVES 2005, 3rd — 7th, July, 2005, Madrid, Spain, 221, 2005.

[21] [21] W. Zhang, “An Experimental Study and a Three-Dimensional Numerical Wave Basin Model of Solitary Wave Impact on A Vertical Cylinder,” MS Thesis, Ocean Engineering Program, Oregon State University, 2009.