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International journal of naval architecture and ocean engineering v.2 no.2, 2010년, pp.112 - 118   피인용횟수: 4

Numerical investigation of vortex shedding and vortex-induced vibration for flexible riser models

Chen, Zheng-Shou    (School of Naval Architecture and Civil Engineering, Zhejiang Ocean University   ); Kim, Wu-Joan    (Department of Ocean Engineering, Mokpo National University  );
  • 초록

    The numerical study about the vortex-induced vibration and vortex shedding in the wake has been presented. Prior to the numerical simulation of flexible riser systems concerning engineering conditions, efficiency validating of the proposed FSI solution method have been performed. The comparison between numerical simulation and published experimental data shows that the CFD method designed for FSI solution could give acceptable result for the VIV prediction of flexible riser/pipe system. As meaningful study on VIV and vortex shedding mode with the focus on flexible riser model systems, two kinds of typical simulation cases have been carried out. One was related to the simulation of vortex visualization in the wake for a riser model subject to forced oscillation, and another was related to the simulation of fluid-structure interaction between the pipes of coupled multi-assembled riser system. The result from forced oscillation simulation shows that the vortex-induced vibration with high response frequency but small instantaneous vibration amplitude contributes to vortex conformation as much as the forced oscillation with large normalized amplitude does, when the frequency of forced oscillation was relatively high. In the multi-assembled riser systems, it has been found that the external current velocity and the distance between two pipes are the critical factors to determine the vibration state and the steady vibration state emerging in quad-pipe system may be destroyed more easily than dual-pipe system.


  • 주제어

    Vortex-induced vibration (VIV) .   Vortex shedding .   Forced motion .   Multi-assembled pipe .   FSI.  

  • 참고문헌 (11)

    1. ANSYS, 2007. ANSYS CFX-Solver Modeling Guide (V11 SP1), ANSYS Co. 
    2. Chen, Z.S. and Kim, W.J., 2008. Numerical simulation of a large-scale riser with vortex-induced vibration. Proceedings of the Eighth ISOPE Pacific/Asia Offshore Mechanics Symposium, Bangkok, Thailand. pp.121-128. 
    3. Chen, Z.S. and Kim, W.J., 2010. Effect of internal flow on fluid?structure interaction of marine riser model subject to sheared current. submitted to Journal of Fluids and Structures. 
    4. Choi, Y.L. and Hong, S., 2000. Study about structural deformation estimation about flexible pipe in the engineering basin model test. Korea Ocean Research & Development Institute (KORDI), Research report. 
    5. Holmes, S. and Owen, H., 2006. Simulation of Riser VIV Using Fully Three Dimensional CFD Simulations. OMAE, Hamburg, Germany, 4-9 June. 
    6. Huang, K. and Chen, H.C., Chen, C.R., 2009. Vertical Riser VIV Simulation in Sheared Current. ISOPE, Osaka, Japan. 21-26 June, pp. 1369-1376. 
    7. Lehn, E., 2003. VIV suppression tests on high L/D flexible cylinders (main report). ExxonMobil upstream research company. 
    8. Menter, F. and Sharkey, P., 2006. Overview of Fluidstructure coupling in ANSYS-CFX. 25th International Conference on Offshore Mechanics and Arctic Engineering, Hamburg, Germany. 
    9. Michael, S. P., 1994. Vortex induced vibration parameters: critical review. OMAE Offshore Technology, USA. 
    10. Yamamoto, C.T. Meneghini, J.R. Saltara F. Fregonesi, R.A., and Ferrari, J.A. Jr, 2004. Numerical simulations of vortex-induced vibration on flexible cylinders. Journal of Fluids and Structures, 19(4), pp. 467-489. 
    11. Kim Y.C. and Rheem C.K., 2009, Cross flow response of a cylindrical structure under local shear flow, International Journal of Naval Architecture and Ocean Engineering, 1(2), pp. 101-107.     
  • 이 논문을 인용한 문헌 (4)

    1. Jung, Jae-Hwan ; Yoon, Hyun-Sik ; Choi, Chang-Young ; Chun, Ho-Hwan ; Park, Dong-Woo 2012. "Large Eddy Simulation of Flow around Twisted Offshore Structure with Drag Reduction and Vortex Suppression" 大韓造船學會 論文集 = Journal of the Society of Naval Architects of Korea, 49(5): 440~446     
    2. Park, Jun-Bum ; Jeong, Se-Min 2014. "Fatigue Damage Model Comparison with Tri-modal Spectrum under Stationary Gaussian Random Processes" 韓國海洋工學會誌 = Journal of ocean engineering and technology, 28(3): 185~192     
    3. 2015. "" International journal of naval architecture and ocean engineering, 7(6): 1034~1043     
    4. Kim, Sang Woo ; Lee, Seung Jae ; Choi, Sol Mi 2016. "A Study on the Riser Fatigue Analysis Using a Quarter-modal Spectrum" 大韓造船學會 論文集 = Journal of the Society of Naval Architects of Korea, 53(6): 514~520     

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