Implementing Vibration Framework for Simulation of VIV on Rigid Pier by SPH

Hassan Ghassemi^1, , Aliakbar Safaei¹ and Shahryar Abtahi¹

¹Department of Maritime Engineering, Amirkabir University of Technology, Tehran, Iran

Cite this paper:
Hassan Ghassemi, Aliakbar Safaei and Shahryar Abtahi. Implementing Vibration Framework for Simulation of VIV on Rigid Pier by SPH. American Journal of Civil Engineering and Architecture. 2015; 3(4):137-143. doi: 10.12691/ajcea-3-4-4

Abstract

It is worth mentioning that the effect of waves on fixed and floating platforms is considered as an important element when designing any offshore structures. This paper is developed a numerical model to simulate current and wave interaction with a vertical cylinder as a platform leg using Smooth Particle Hydrodynamics (SPH) method for solving hydrodynamics part and using Finite Element Method (FEM) for structural part. SPH method is Lagrangian meshless based which is accurate enough for free surface modeling in comparison with other Eulerian mesh based methods. Capability of this method to calculate inline and cross flow forces on cylinder taking into consideration different time solution algorithms. The results showed that SPH not only creates much better result for simulating Vortex Induced Vibration (VIV) but also using the predictor-corrector algorithm for time step algorithm can leads to the most accurate results for predicting lift force.

Keywords:
wave structure interaction SPH method predictor-corrector algorithm

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