Fluid-structured interaction in the case of two independent cylinders in vortex induced vibrations (VIV)

• Autorzy: Herfjord K. , Olsen G. , Kvamsdal T. , Okstad K. M.
• Języki publikacji: EN

Abstrakty

EN

A methodology for computing vortex-induced vibrations (VIV) on risers is presented. It is based on computation of the flow by a Computational Fluid Dynamics (CFD) program, structural dynamics by a nonlinear Computational Structural Dynamics (CSD) code and a coupling between them. Herein, we discuss in particular procedures for computing the mesh movement in staggered FSl-simulations. A two-level mesh movement procedure earlier presented for block structured meshes is enhanced for use with completely unstructured meshes. A challenging example involving VIV of two cylinders with large relative motions is presented.

Słowa kluczowe

EN

fluid structure interaction; mesh movement; offshor risers

PL

koło zębate; dynamika płynów; drgania

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2002
• Tom: Vol. 7, no 1
• Strony: 65--83
• Opis fizyczny: Bibliogr. 14 poz., rys., wykr.

Twórcy

autor

Herfjord K.

• Norsk Hydro Research Centre Bergen N-5020 Bergen, Norway

autor

Olsen G.

• Norsk Hydro Research Centre Bergen N-5020 Bergen, Norway

autor

Kvamsdal T.

• SINTEF Applied Mathematics, N-7465 Trondheim, NORWAY

autor

Okstad K. M.

• SINTEF Applied Mathematics, N-7465 Trondheim, NORWAY

Bibliografia

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• [7] Herfjord K., Larsen C. M., Furnes G., Holmas T. and Randa K. (1999): FSI-simulations of vortex-induced vibration of offshore structures, In: Computational Methods for Fluid-Structure Interaction, (T. Kvamsdal, I. Enevoldsen, K. Herfjord, C.B. Jenssen, K. Mehr and S.P. Norsett, Eds.). - Trondheim, Norway: Tapir Forlag, pp.283-303.
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• [12] Kvamsdal T., Okstad K.M., S0rli K. and Pegon P. (1999b): Two-level adaptive mesh movement algorithms for FSI-computations, In: Computational Methods for Fluid- Structure Interaction (T. Kvamsdal, I. Enevoldsen, K. Herfjord, C.B. Jenssen, K. Mehr and S.P. Norsett, Eds.). - Trondheim, Norway: Tapir Forlag, pp.121-132.
• [13] Larsen C. M. and Halse K.H. (1995): Comparison of models for vortex induced vibrations of slender marine structures, In: Proceedings of the Sixth International Conference on Flow-Induced Vibrations, April 1995 (P.W. Bearman Ed.). - The Netherlands: A.A. Balkema, pp.467-482.
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