Effect of bidirectional internal flow on fluid–structure interaction dynamics of conveying marine riser model subject to shear current
2
조회
0
다운로드
4
인용
0
참고문헌
키워드
초록
This article presents a numerical investigation concerning the effect of two kinds of axially progressing internal flows (namely, upward and downward) on fluid–structure interaction (FSI) dynamics about a marine riser model which is subject to external shear current. The CAE technology behind the current research is a proposed FSI solution, which combines structural analysis software with CFD technology together. Efficiency validation for the CFD software was carried out first. It has been proved that the result from numerical simulations agrees well with the observation from relating model test cases in which the fluidity of internal flow is ignorable. After verifying the numerical code accuracy, simulations are conducted to study the vibration response that attributes to the internal progressive flow. It is found that the existence of internal flow does play an important role in determining the vibration mode (/dominant frequency) and the magnitude of instantaneous vibration amplitude. Since asymmetric curvature along the riser span emerges in the case of external shear current, the centrifugal and Coriolis accelerations owing to up- and downward internal progressive flows play different roles in determining the fluid–structure interaction response. The discrepancy between them becomes distinct, when the velocity ratio of internal flow against external shear current is relatively high.
Abstract
This article presents a numerical investigation concerning the effect of two kinds of axially progressing internal flows (namely, upward and downward) on fluid–structure interaction (FSI) dynamics about a marine riser model which is subject to external shear current. The CAE technology behind the current research is a proposed FSI solution, which combines structural analysis software with CFD technology together. Efficiency validation for the CFD software was carried out first. It has been proved that the result from numerical simulations agrees well with the observation from relating model test cases in which the fluidity of internal flow is ignorable. After verifying the numerical code accuracy, simulations are conducted to study the vibration response that attributes to the internal progressive flow. It is found that the existence of internal flow does play an important role in determining the vibration mode (/dominant frequency) and the magnitude of instantaneous vibration amplitude. Since asymmetric curvature along the riser span emerges in the case of external shear current, the centrifugal and Coriolis accelerations owing to up- and downward internal progressive flows play different roles in determining the fluid–structure interaction response. The discrepancy between them becomes distinct, when the velocity ratio of internal flow against external shear current is relatively high.
참고문헌 (33)
- ANSYS, "ANSYS CFX-Solver Modeling Guide (V11)", ~ (2007)
- Al-Jamal, H., "Vortex induced vibrations using large eddy simulation at a moderate Reynolds number", Journal of Fluids and Structure, 19(1), pp.73~92 (2004)
- Brandt, T.T., "Study of Large Eddy Simulation and Smagorinsky Model using Explicit Filtering", 36th AIAA Fluid Dynamics Conference and Exhibit. San Francisco, California (2006), AIAA
- 진정수, "해양 라이저의 보텍스 유기진동에 관한 수치계산 및 신호해석 방법 연구", 박사, pp.2010
- 전정수, "Numerical investigation of vortex shedding and vortex-induced vibration for flexible riser models", International Journal of Naval Architecture and Ocean Engineering, 2(2), pp.112~118 (2010), 대한조선학회
- Chen, Z. S., "Numerical simulation of a short flexible pipe subject to forced motion and vortex-induced vibration", ACTA OCEANOLOGICA SINICA, 28(6), pp.70~83 (2009), SPRINGER
- Chen, Z.S., "Numerical simulation of a large-scale riser with vortex-induced vibration", Proceedings of the Eighth ISOPE Pacific, 2008, 121~128
- Dong, S., "DNS of flow past a stationary and oscillating cylinder at Re=10000", Journal of Fluids and Structure, 20(4), pp.19~31 (2005)
- Feng, C.C., "The measurement of vortex induced effects in flow past stationary and oscillating circular and D-section cylinders", 석사, pp.1968
- Fujisawa, N., "Computational and experimental study on flow around a rotationally oscillating circular cylinder in a uniform flow", J Wind Eng Ind Aerodyn, 93(2), pp.37~53 (2005)
- Guo, H.Y., "Effect of internal flow on vortex-induced vibration of risers", Journal of Fluids and Structures, 24(4), pp.469~504 (2008)
- Guilmineau, E., "Numerical simulation of vortex-induced vibration of a circular cylinder with low mass-damping in a turbulent flow", Journal of Fluids and Structures, 19, pp.449~466 (2004)
- Hong, N.S., "The effect of internal flow on marine riser dynamics", 박사, pp.1994
- Hong, N., "The effect of internal flow on vortex-induced vibration of riser", Proceedings of the Ninth International Offshore and Polar Engineering Conference, Brest, France, pp.688~693 (1999)
- Huang, K., "Vertical Riser VIV Simulation in Sheared Current", ISOPE, 1369~1376 (2009)
- Holmes, S., "Simulation of Riser VIV Using Fully Three Dimensional CFD Simulations", 25th International Conference on Offshore Mechanics and Arctic Engineering, Hamburg, Germany (2006), OMAE
- D flexible cylinders, "VIV suppression tests on high L", pp.2003, Lehn, E.
- Lie, H., "Modal analysis of measurements from a large-scale VIV model test of a riser in linearly sheared flow", Journal of Fluids and Structures, 22(4), pp.557~575 (2006)
- Lopes, J.L., "Linear and nonlinear dynamics of cantilevered cylinders in axial flow, Part 2: The equations of motion", Journal of Fluids and Structures, 16(6), pp.615~737 (2002)
- Mittal, S., "Flow-induced vibrations of a light circular cylinder at Reynolds numbers 103 to 104", Journal of Sound and Vibration, 245(5), pp.23~46 (2001)
- Mukundan, H., "A systematic approach to riser VIV response reconstruction", Journal of Fluids and Structures, 26(5), pp.722~746 (2010)
- Menter, F., "Overview of Fluid-structure coupling in ANSYS-CFX", 25th International Conference on Offshore Mechanics and Arctic Engineering, Hamburg, Germany (2006), OMAE
- Michelassi, V., "Large-eddy simulation of flow around low-pressure turbine blade with incoming wakes", AIAA Journal, 41(11), pp.2143~2156 (2003)
- Nobari, M.R.H., "A numerical study of flow past a cylinder with cross flow and inline oscillation", Computer Fluids, 35(4), pp.393~415 (2006)
- Païdoussis, M.P., "Fluid-Structure Interactions: Slender Structures and Axial Flow-Volume 1" (1998), Academic Press
- Païdoussis, M.P., "Fluid-Structure Interactions: Slender Structures and Axial Flow-Volume 2" (2004), Elservier Academic Press
- Saghafian, M., "Simulation of turbulent flows around a circular cylinder using nonlinear eddy viscosity modelling: steady and oscillatory ambient flows", Journal Fluids and Structures, 17(8), pp.13~36 (2003)
- Semler, C., "Linear and nonlinear dynamics of cantilevered cylinders in axial flow, Part 3: Nonlinear dynamics", Journal of Fluids and Structures, 16(6), pp.739~759 (2002)
- The simulation of vortex shedding from an oscillating circular cylinder with turbulence modeling, "Saltara, F.", ASME, ~ (1998)
- Tutar, M., "Large eddy simulation of a smooth circular cylinder oscillating normal to a uniform flow", ASME Journal of Fluids Engineering, 122(4), pp.694~702 (2000)
- Wanderley, J.B.V., "Numerical Simulation of Vortex Induced Vibration Using the κ-ε Model", 25th International Conference on Offshore Mechanics and Arctic Engineering, Hamburg, Germany (2006), OMAE
- Yamamotoa, C.T., "Numerical simulations of vortex-induced vibration on flexible cylinders", Journal of Fluids and Structures, 19(4), pp.467~489 (2004)
- Zhang, J., "Interaction of vortex-induced vibration of a circular cylinder and a steady approach flow at a Reynolds number of 13,000", Computers and Fluids, 25(3), pp.283~294 (1996)