Smoothed Particle Hydrodynamics (SPH) method for modelling 2-dimensional free surface hydrodynamics
Smoothed Particle Hydrodynamics (SPH) method for modelling 2-dimensional free surface hydrodynamics
The main goal of the current research is to implement Smoothed Particle Hydrodynamics (SPH) for the prediction of wave-induced motions and loads within the framework of 3D modelling. In this paper, the focus is twofold. First, implementation of possible additional terms to the standard Incompressible SPH (ISPH) method with reference to generating/propagating regular waves in 2D domain, using a piston wave maker. Improvements to the prediction of pressure and velocity fields are then carried out with kernel renormalization technique and shifting technique without increasing the computational cost. The arc method is employed to improve the accuracy of free surface recognition, i.e. “noise-free” free surface. In addition, the Weakly Compressible (WCSPH) is also applied to the problem of 2D regular wave generation. Comparisons of predicted free surfaces, their kinematic and dynamic characteristics between ISPH, WCSPH and analytical solutions for a range of frequencies are carried out. The second focus of the paper is the 2D radiation problem due to forced sinusoidal oscillation of a rectangular section floating on calm water. The predicted hydrodynamic actions and coefficients in sway by WCSPH are then compared against available experimental measurements
978-1-138-02789-3
45-52
Ramli, M.Z.
b8b27c86-97c7-47a6-8501-09d004f7f585
Temarel, P.
b641fc50-5c8e-4540-8820-ae6779b4b0cf
Tan, M.
4d02e6ad-7915-491c-99cc-a1c85348267c
March 2015
Ramli, M.Z.
b8b27c86-97c7-47a6-8501-09d004f7f585
Temarel, P.
b641fc50-5c8e-4540-8820-ae6779b4b0cf
Tan, M.
4d02e6ad-7915-491c-99cc-a1c85348267c
Ramli, M.Z., Temarel, P. and Tan, M.
(2015)
Smoothed Particle Hydrodynamics (SPH) method for modelling 2-dimensional free surface hydrodynamics.
Guedes Soares, C. and Shenoi, R.A.
(eds.)
In Analysis and Design of Marine Structures V.
CRC Press.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The main goal of the current research is to implement Smoothed Particle Hydrodynamics (SPH) for the prediction of wave-induced motions and loads within the framework of 3D modelling. In this paper, the focus is twofold. First, implementation of possible additional terms to the standard Incompressible SPH (ISPH) method with reference to generating/propagating regular waves in 2D domain, using a piston wave maker. Improvements to the prediction of pressure and velocity fields are then carried out with kernel renormalization technique and shifting technique without increasing the computational cost. The arc method is employed to improve the accuracy of free surface recognition, i.e. “noise-free” free surface. In addition, the Weakly Compressible (WCSPH) is also applied to the problem of 2D regular wave generation. Comparisons of predicted free surfaces, their kinematic and dynamic characteristics between ISPH, WCSPH and analytical solutions for a range of frequencies are carried out. The second focus of the paper is the 2D radiation problem due to forced sinusoidal oscillation of a rectangular section floating on calm water. The predicted hydrodynamic actions and coefficients in sway by WCSPH are then compared against available experimental measurements
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Published date: March 2015
Venue - Dates:
5th International Conference on Marine Structures (MARSTRUCT 2015), Southampton, United Kingdom, 2015-03-25 - 2015-03-27
Organisations:
Civil Maritime & Env. Eng & Sci Unit
Identifiers
Local EPrints ID: 375732
URI: http://eprints.soton.ac.uk/id/eprint/375732
ISBN: 978-1-138-02789-3
PURE UUID: 40aa19d4-5432-4afe-ac48-1ae99ff2159f
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Date deposited: 16 Apr 2015 08:16
Last modified: 12 Dec 2021 02:48
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Contributors
Author:
M.Z. Ramli
Editor:
C. Guedes Soares
Editor:
R.A. Shenoi
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