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Passive Control of Flow-Induced Vibration (FIV) by Helical Strakes for Two Staggered Flexible Cylinders

Abstract

Helical strake is a widely-used device for passive flow-induced vibration (FIV) control of cylindrical structures. It is omnidirectional and can effectively reduce FIV response amplitude. Studies on the passive FIV control for cylindrical structures are mainly concerned with a single isolated cylinder, while the influence of wake interference between multiple cylinders on FIV suppression devices is less considered up to now. In engineering applications, multiple flexible cylinders with large aspect ratios can be subjected to complex flow forces, and the effects of wake interference are obvious. The FIV suppression effect of helical strake of a common configuration (17.5D pitch and 0.25D height, where D is the cylinder diameter) in two staggered cylinders system is still unknown. This paper systematically studied the FIV response of multiple cylinders system fitted with the helical strakes by model tests. The relative spatial position of the two cylinders is fixed at S = 3.0D and T = 8.0D, which ensures the cylindrical structures in the flow interference region. The experimental results show that the helical strakes effectively reduce the FIV response on staggered upstream cylinder, and the suppression efficiency is barely affected by the smooth or straked downstream cylinder. The corresponding FIV suppression efficiency on the downstream cylinder is remarkably reduced by the influence of the upstream wake flow. The wake-induced vibration (WIV) phenomenon is not observed on the staggered downstream cylinder, which normally occurs on the downstream straked cylinder in a tandem arrangement.

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References

  1. Assi, G.R.S., 2014. Wake-induced vibration of tandem and staggered cylinders with two degrees of freedom, Journal of Fluids and Structures, 50, 340–357.

    Article  Google Scholar 

  2. Assi, G.R.S., Bearman, P.W. and Kitney, N., 2009. Low drag solutions for suppressing vortex-induced vibration of circular cylinders, Journal of Fluids and Structures, 25(4), 666–675.

    Article  Google Scholar 

  3. Assi, G.R.S., Bearman, P.W., Kitney, N. and Tognarelli, M.A., 2010. Suppression of wake-induced vibration of tandem cylinders with free-to-rotate control plates, Journal of Fluids and Structures, 26(7–8), 1045–1057.

    Article  Google Scholar 

  4. Assi, G.R.S., Mengeghini, J.R., Aranha, J.A.P., Bearman, P.W. and Casaprima, E., 2006. Experimental investigation of flow-induced vibration interference between two circular cylinders, Journal of Fluids and Structures, 22(6–7), 819–827.

    Article  Google Scholar 

  5. Gao, Y., Fu, S.X., Ren, T., Xiong, Y.M. and Song, L.J., 2015. VIV response of a long flexible riser fitted with strakes in uniform and linearly sheared currents, Applied Ocean Research, 52, 102–114.

    Article  Google Scholar 

  6. Gao, Y., Yang, J.D., Xiong, Y.M., Wang, M.H. and Peng, G., 2016. Experimental investigation of the effects of the coverage of helical strakes on the vortex-induced vibration response of a flexible riser, Applied Ocean Research, 59, 53–64.

    Article  Google Scholar 

  7. Han, Q.H., Ma, Y.X., Xu, W.H., Lu, Y. and Cheng, A.K., 2017. Dynamic characteristics of an inclined flexible cylinder undergoing vortex-induced vibrations, Journal of Sound and Vibration, 394, 306–320.

    Article  Google Scholar 

  8. Huang, S. and Herfjord, K., 2013. Experimental investigation of the forces and motion responses of two interfering VIV circular cylinders at various tandem and staggered positions, Applied Ocean Research, 43, 264–273.

    Article  Google Scholar 

  9. Huera-Huarte, F.J., Bangash, Z.A. and González, L.M., 2016. Multimode vortex and wake-induced vibrations of a flexible cylinder in tandem arrangement, Journal of Fluids and Structures, 66, 571–588.

    Article  Google Scholar 

  10. Huera-Huarte, F.J. and Bearman, P.W., 2011. Vortex and wake-induced vibrations of a tandem arrangement of two flexible circular cylinders with near wake interference, Journal of Fluids and Structures, 27(2), 193–211.

    Article  Google Scholar 

  11. Huera-Huarte, F.J. and Gharib, M., 2011a. Vortex and wake-induced vibrations of a tandem arrangement of two flexible circular cylinders with far wake interference, Journal of Fluids and Structures, 27(5–6), 824–828.

    Article  Google Scholar 

  12. Huera-Huarte, F.J. and Gharib, M., 2011b. Flow-induced vibrations of a side-by-side arrangement of two flexible circular cylinders, Journal of Fluids and Structures, 27(3), 354–366.

    Article  Google Scholar 

  13. Korkischko, I. and Meneghini, J.R., 2010. Experimental investigation of flow-induced vibration on isolated and tandem circular cylinders fitted with strakes, Journal of Fluids and Structures, 26(4), 611–625.

    Article  Google Scholar 

  14. Lie, H. and Kaasen, K.E., 2006. 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), 557–575.

    Article  Google Scholar 

  15. Quen, L.K., Abu, A., Kato, N., Muhamad, P., Sahekhaini, A. and Abdullah, H., 2014. Investigation on the effectiveness of helical strakes in suppressing VIV of flexible riser, Applied Ocean Research, 44, 82–91.

    Article  Google Scholar 

  16. Rashidi, S., Hayatdavoodi, M. and Esfahani, J.A., 2016. Vortex shedding suppression and wake control: A review, Ocean Engineering, 126, 57–80.

    Article  Google Scholar 

  17. Sarpkaya, T., 2004. A critical review of the intrinsic nature of vortex-induced vibrations, Journal of Fluids and Structures, 19(4), 389–447.

    Article  Google Scholar 

  18. Simpson, A., 1971. Wake induced flutter of circular cylinders: Mechanical aspects, Aeronautical Quarterly, 22(2), 101–118.

    Article  Google Scholar 

  19. Song, J.N., Lu, L., Teng, B., Park, H.I., Tang, G.Q. and Wu, H., 2011. Laboratory tests of vortex-induced vibrations of a long flexible riser pipe subjected to uniform flow, Ocean Engineering, 38(11–12), 1308–1322.

    Article  Google Scholar 

  20. Sumner, D., 2010. Two circular cylinders in cross-flow: A review, Journal of Fluids and Structures, 26(6), 849–899.

    Article  Google Scholar 

  21. Trim, A.D., Braaten, H., Lie, H. and Tognarelli, M.A., 2005. Experimental investigation of vortex-induced vibration of long marine risers, Journal of Fluids and Structures, 21(3), 335–361.

    Article  Google Scholar 

  22. Williamson, C.H.K. and Govardhan, R., 2008. A brief review of recent results in vortex-induced vibrations, Journal of Wind Engineering and Industrial Aerodynamics, 96(6), 713–735.

    Article  Google Scholar 

  23. Wu, X.D., Ge, F. and Hong, Y.S., 2012. A review of recent studies on vortex-induced vibrations of long slender cylinders, Journal of Fluids and Structures, 28, 292–308.

    Article  Google Scholar 

  24. Xu, W.H., Cheng, A.K., Ma, Y.X. and Gao, X.F., 2018a. Multi-mode flow-induced vibrations of two side-by-side slender flexible cylinders in a uniform flow, Marine Structures, 57, 219–236.

    Article  Google Scholar 

  25. Xu, W.H., Luan, Y.S., Liu, L.Q. and Wu, Y.X., 2017. Influences of the helical strake cross-section shape on vortex-induced vibrations suppression for a long flexible cylinder, China Ocean Engineering, 31(4), 438–446.

    Article  Google Scholar 

  26. Xu, W.H., Ma, Y.X., Cheng, A.K. and Yuan, H., 2018b. Experimental investigation on multi-mode flow-induced vibrations of two long flexible cylinders in a tandem arrangement, International Journal of Mechanical Sciences, 135, 261–278.

    Article  Google Scholar 

  27. Xu, W.H., Qin, W.Q., He, M. and Gao, X.F., 2018c. Passive VIV reduction of an inclined flexible cylinder by means of helical strakes with round-section, China Ocean Engineering, 32(4), 413–421.

    Article  Google Scholar 

  28. Xu, W.H., Qin, W.Q. and Yu, Y., 2020. Flow-induced vibration of two identical long flexible cylinders in a staggered arrangement, International Journal of Mechanical Sciences, 180, 105637.

    Article  Google Scholar 

  29. Xu, W.H., Yu, Y., Wang, E.H. and Zhou, L.D., 2018d. Flow-induced vibration (FIV) suppression of two tandem long flexible cylinders attached with helical strakes, Ocean Engineering, 169, 49–69.

    Article  Google Scholar 

  30. Xu, W.H., Zhang, S.H., Ma, Y.X. and Liu, B., 2021a. Fluid forces acting on three and four long side-by-side flexible cylinders undergoing flow-induced vibration (FIV), Marine Structures, 75, 102877.

    Article  Google Scholar 

  31. Xu, W.H., Zhang, S.H., Ma, Y.X., Liu, B. and Wang, J.L., 2021b. A study on the FIV hydrodynamic force coefficients of two staggered flexible cylinders via an inverse method, Ocean Engineering, 219, 108272.

    Article  Google Scholar 

  32. Xu, W.H., Zhang, S.H., Zhou, L.D. and Gao, X.F., 2018e. Use of helical strakes for FIV suppression of two inclined flexible cylinders in a side-by-side arrangement, China Ocean Engineering, 32(3), 331–340.

    Article  Google Scholar 

  33. Zdravkovich, M.M., 1981. Review and classification of various aerodynamic and hydrodynamic means for suppressing vortex shedding, Journal of Wind Engineering and Industrial Aerodynamics, 7(2), 145–189.

    Article  Google Scholar 

  34. Zdravkovich, M.M., 1987. The effects of interference between circular cylinders in cross flow, Journal of Fluids and Structures, 1(2), 239–261.

    Article  Google Scholar 

  35. Zdravkovich, M.M., 1988. Review of interference-induced oscillations in flow past two parallel circular cylinders in various arrangements, Journal of Wind Engineering and Industrial Aerodynamics, 28(1–3), 183–199.

    Article  Google Scholar 

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Correspondence to Wan-hai Xu or Zun-feng Du.

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Foundation item

This work was financially supported by the National Natural Science Foundation of China (Grant No. 51979193) and the Natural Science Foundation of Tianjin (Grant No. 20JCYBJC00890).

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Xu, Wh., Wang, Qc., Qin, Wq. et al. Passive Control of Flow-Induced Vibration (FIV) by Helical Strakes for Two Staggered Flexible Cylinders. China Ocean Eng 35, 475–489 (2021). https://doi.org/10.1007/s13344-021-0044-x

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Key words

  • flow-induced vibration (FIV)
  • passive control
  • helical strakes
  • flexible cylinders
  • staggered arrangement