Wind and Structures

  • 제30권6호
  • /
  • Pages.617-631
  • /
  • 2020
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Wind tunnel study of wake-induced aerodynamics of parallel stay-cables and power conductor cables in a yawed flow

  • Jafari, Mohammad (Department of Aerospace Engineering, Iowa State University) ;
  • Sarkar, Partha P. (Department of Aerospace Engineering, Iowa State University)
  • 투고 : 2019.10.16
  • 심사 : 2020.05.12
  • 발행 : 2020.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

Wake-induced aerodynamics of yawed circular cylinders with smooth and grooved surfaces in a tandem arrangement was studied. This pair of cylinders represent sections of stay-cables with smooth surfaces and high-voltage power conductors with grooved surfaces that are vulnerable to flow-induced structural failure. The study provides some insight for a better understanding of wake-induced loads and galloping problem of bundled cables. All experiments in this study were conducted using a pair of stationary section models of circular cylinders in a wind tunnel subjected to uniform and smooth flow. The aerodynamic force coefficients and vortex-shedding frequency of the downstream model were extracted from the surface pressure distribution. For measurement, polished aluminum tubes were used as smooth cables; and hollow tubes with a helically grooved surface were used as power conductors. The aerodynamic properties of the downstream model were captured at wind speeds of about 6-23 m/s (Reynolds number of 5×104 to 2.67×105 for smooth cable and 2×104 to 1.01×105 for grooved cable) and yaw angles ranging from 0° to 45° while the upstream model was fixed at the various spacing between the two model cylinders. The results showed that the Strouhal number of yawed cable is less than the non-yawed case at a given Reynolds number, and its value is smaller than the Strouhal number of a single cable. Additionally, compared to the single smooth cable, it was observed that there was a reduction of drag coefficient of the downstream model, but no change in a drag coefficient of the downstream grooved case in the range of Reynolds number in this study.

키워드

과제정보

The authors gratefully thank the U.S. National Science Foundation (NSF) for financially supporting this project by the research grant CMMI-1537917.

참고문헌

  1. Acampora, A., Macdonald, J.H.G., Georgakis, C.T. and Nikitas, N. (2014), "Identification of aeroelastic forces and static drag coefficients of a twin cable bridge stay from full-scale ambient vibration measurements", J. Wind Eng. Ind. Aerod., 124, 90-98. https://doi.org/10.1016/j.jweia.2013.10.009.
  2. Alam, M.M. (2014), "The aerodynamics of a cylinder submerged in the wake of another", J. Fluids Struct., 51, 393-400. https://doi.org/10.1016/j.jfluidstructs.2014.08.003.
  3. Alam, M.M. and Meyer, J.P. (2013), "Global aerodynamic instability of twin cylinders in cross flow", J. Fluids Struct., 41, 135-145. https://doi.org/10.1016/j.jfluidstructs.2013.03.007.
  4. Alam, M.M., Moriya, M., Takai, K. and Sakamoto, H. (2003), "Fluctuating fluid forces acting on two circular cylinders in a tandem arrangement at a subcritical Reynolds number", J. Wind Eng. Ind. Aerod, 91(1-2), 139-154. https://doi.org/10.1016/S0167-6105(02)00341-0.
  5. An, Y., Wang, C., Li, S. and Wang, D. (2016), "Galloping of steepled main cables in long-span suspension bridges during construction", Wind Struct., 23(6), 595-613. https://doi.org/10.1016/S0167-6105(02)00341-0.
  6. Arie, M., Kiya, M., Moriya, M. and Mori, H. (1983), "Pressure fluctuations on the surface of two circular cylinders in tandem arrangement", J. Fluids Eng., 105, 161-166. https://doi.org/10.1115/1.3240956.
  7. Armin, M., Khorasanchi, M. and Day, S. (2018), "Wake interference of two identical oscillating cylinders in tandem: An experimental study", Ocean Eng., 166, 311-323. https://doi.org/10.1016/j.oceaneng.2018.08.012.
  8. Assi, G.R.S., Bearman, P.W., Kitney, N. and Tognarelli, M.A. (2010a), "Suppression of wake-induced vibration of tandem cylinders with free-to-rotate control plates", J. Fluids Struct., 26(7-8), 1045-1057. https://doi.org/10.1016/j.jfluidstructs.2010.08.004.
  9. Assi, G.R.S., Bearman, P.W. and Meneghini, J.R. (2010b), "On the wake-induced vibration of tandem circular cylinders: The vortex interaction excitation mechanism", J. Fluid Mech., 661, 365-401. https://doi.org/10.1017/S0022112010003095.
  10. Braun, A.L. and Awruch, A.M. (2005), "Aerodynamic and aeroelastic analysis of bundled cables by numerical simulation", J. Sound Vib., 284(1-2), 51-73. https://doi.org/10.1016/j.jsv.2004.06.026.
  11. Burlina, C., Georgakis, C.T., Larsen, S.V. and Egger, P. (2018), "Aerodynamics and rain rivulet suppression of bridge cables with concave fillets", Wind Struct., 26(4), 253-266. https://doi.org/10.12989/was.2018.26.4.253.
  12. Carmo, B.S., Meneghini, J.R. and Sherwin, S.J. (2010), "Secondary instabilities in the flow around two circular cylinders in tandem", J. Fluid Mech., 644, 395-431. https://doi.org/10.1017/S0022112009992473.
  13. Cheng, S. and Tanaka, H. (2005), "Correlation of aerodynamic forces on an inclined circular cylinder", Wind Struct., 8(2), 135-146. https://doi.org/10.12989/was.2005.8.2.135.
  14. Dehkordi, B.G., Moghaddam, H.S. and Jafari, H.H. (2011), "Numerical simulation of flow over two circular cylinders in tandem arrangement", J. Hydrodyn., 23(1), 114-126. https://doi.org/10.1016/S1001-6058(10)60095-9.
  15. Gawronski, K.E. and Hawks, R.J. (1978), "Effect of conductor geometry on bundle conductor galloping", Electr. Pow. Syst. Res., 1(3), 181-188. https://doi.org/10.1016/0378-7796(78)90022-6.
  16. Gorski, P., Pospisil, S., Kuznetsov, S., Tatara, M. and Marusic, A. (2016), "Strouhal number of bridge cables with ice accretion at low flow turbulence", Wind Struct., 22(2), 253-272. http://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=KJKHCF_2016_v22n2_253. https://doi.org/10.12989/was.2016.22.2.253
  17. He, X., Cai, C., Wang, Z., Jing, H. and Qin, C. (2018), "Experimental verification of the effectiveness of elastic cross-ties in suppressing wake-induced vibrations of staggered stay cables", Eng. Struct., 167, 151-165. https://doi.org/10.1016/j.engstruct.2018.04.033.
  18. Huera-Huarte, F.J. and Gharib, M. (2011), "Flow-induced vibrations of a side-by-side arrangement of two flexible circular cylinders", J. Fluids Struct., 27(3), 354-366. https://doi.org/10.1016/j.jfluidstructs.2011.01.001.
  19. Jafari, M. and Sarkar, P.P. (2019), "Parameter identification of wind-induced buffeting loads and onset criteria for dry-cable galloping of yawed / inclined cables", Eng. Struct., 180, 685-699. https://doi.org/10.1016/j.engstruct.2018.11.049.
  20. Jenkins, L., Neuhart, D., McGinley, C., Khorrami, M. and Choudhari, M. (2006), "Measurements of unsteady wake interference between tandem cylinders", In the 36th AIAA Fluid Dynamics Conference and Exhibit., 3202.
  21. Kim, S., Alam, M., Sakamoto, H. and Zhou, Y. (2009a), "Flow-induced vibration of two circular cylinders in tandem arrangement. Part 2: Suppression of vibrations", J. Wind Eng. Ind. Aerod., 97(5-6), 312-319. https://doi.org/10.1016/j.jweia.2009.07.003.
  22. Kim, S., Alam, M., Sakamoto, H. and Zhou, Y. (2009b), "Flow-induced vibrations of two circular cylinders in tandem arrangement. Part 1: Characteristics of vibration", J. Wind Eng. Ind. Aerod., 97(5-6), 304-311. https://doi.org/10.1016/j.jweia.2009.07.004.
  23. Kim, S. and Kim, H.K. (2014), "Wake galloping phenomena between two parallel/unparallel cylinders", Wind Struct., 18(5), 511-528. https://doi.org/10.12989/was.2014.18.5.511.
  24. Korkischko, I. and Meneghini, J.R. (2010), "Experimental investigation of flow-induced vibration on isolated and tandem circular cylinders fitted with strakes", J. Fluids Struct., 26(4), 611-625. https://doi.org/10.1016/j.jfluidstructs.2010.03.001.
  25. Kumarasena, S., Jones, N.P., Irwin, P. and Taylor, P. (2007), "Wind induced vibration of stay cables", Missouri Deptartment of Transportation. Research, Development and Technology Division. Report No. RI-98-034.
  26. Lam, K., Lin, Y.F., Zou, L. and Liu, Y. (2012), "Numerical simulation of flows around two unyawed and yawed wavy cylinders in tandem arrangement", J. Fluids Struct., 28, 135-151. https://doi.org/10.1016/j.jfluidstructs.2011.08.012.
  27. Li, S.Y., Wu, T., Li, S.K. and Gu, M. (2016a), "Numerical study on the mitigation of rain-wind induced vibrations of stay cables with dampers", Wind Struct., 23(6), 615-639. http://dx.doi.org/10.12989/was.2016.23.6.615.
  28. Li, S.Y., Wu, T., Huang, T. and Chen, Z.Q. (2016b), "Aerodynamic stability of iced stay cables on cable-stayed bridge", Wind Struct., 23(3), 253-273. http://dx.doi.org/10.12989/was.2016.23.3.253.
  29. Li, Y., Wu, M., Chen, X., Wang, T. and Liao, H. (2013), "Wind-tunnel study of wake galloping of parallel cables on cable-stayed bridges and its suppression", Wind Struct., 16(3), 249-261. https://doi.org/10.12989/was.2013.1r6.3.249.
  30. Lilien, J. and Snegovski, D. (2004), "Wake-induced vibration in power transmission line. parametric study", Flow Induc. Vib., 5. http://hdl.handle.net/2268/18268.
  31. Lin, J.C., Yang, Y. and Rockwell, D. (2002), "Flow past two cylinders in tandem: Instantaneous and averaged flow structure", J. Fluids Struct., 16(8), 1059-1071. https://doi.org/10.1006/jfls.2002.0469
  32. Lin, Y.F., Bai, H.L., Alam, M.M., Zhang, W.G., Lam, K. (2016), "Effects of large spanwise wavelength on the wake of a sinusoidal wavy cylinder", J. Fluids Struct., 61, 392-409. https://doi.org/10.1016/j.jfluidstructs.2015.12.004.
  33. Liu, X., Levitan, M. and Nikitopoulos, D. (2008), "Wind tunnel tests for mean drag and lift coefficients on multiple circular cylinders arranged in-line", J. Wind Eng. Ind. Aerod., 96(6-7), 831-839. https://doi.org/10.1016/j.jweia.2007.06.011
  34. Matsumoto, M., Shiraishi, N., Kitazawa, M., Knisely, C., Shirato, H., Kim, Y. and Tsujii, M. (1990), "Aerodynamic behavior of inclined circular cylinders- cable aerodynamics", J. Wind Eng. Ind. Aerod., 33(1), 63-72. https://doi.org/10.1016/0167-6105(90)90021-4
  35. Matsumoto, M., Yagi, T., Hatsuda, H., Shima, T., Tanaka, M. and Naito, H. (2010), "Dry galloping characteristics and its mechanism of inclined/yawed cables", J. Wind Eng. Ind. Aerod., 98(6-7), 317-327. https://doi.org/10.1016/j.jweia.2009.12.001.
  36. Nguyen, V.T., Ronald Chan, W.H. and Nguyen, H.H. (2018), "Numerical investigation of wake induced vibrations of cylinders in tandem arrangement at subcritical Reynolds numbers", Ocean Eng., 154, 341-356. https://doi.org/10.1016/j.oceaneng.2018.01.073.
  37. Palau-Salvador, G., Stoesser, T. and Rodi, W. (2008), "LES of the flow around two cylinders in tandem", J. Fluids Struct., 24(8), 1304-1312. https://doi.org/10.1016/j.jfluidstructs.2008.07.002
  38. Qin, B., Alam and M.M., Zhou, Y. (2019), "Free vibrations of two tandem elastically mounted cylinders in crossflow", J. Fluid Mech., 861, 349-381. https://doi.org/10.1017/jfm.2018.913.
  39. Qin, B., Alam, M.M., Ji, C., Liu, Y. and Xu, S. (2018), "Flow-induced vibrations of two cylinders of different natural frequencies", Ocean Eng., 155, 189-200. https://doi.org/10.1016/j.oceaneng.2018.02.048.
  40. Qin, B., Alam, M.M. and Zhou, Y. (2017), "Two tandem cylinders of different diameters in cross-flow: flow-induced vibration", J. Fluid Mech., 829, 621-658. https://doi.org/10.1017/jfm.2017.510.
  41. Sharman, B., Lien, F.S., Davidson, L. and Norberg, C. (2005), "Numerical predictions of low Reynolds number flows over two tandem circular cylinders", Int. J. Numer. Meth. FL., 47(5), 423-447. https://doi.org/10.1002/fld.812.
  42. Shen, X., Ma, R.J., Ge, C.X. and Hu, X.H. (2018), "Long-term monitoring of super-long stay cables on a cable-stayed bridge". Wind Struct., 27(6), 357-368. https://doi.org/10.12989/was.2018.27.6.357.
  43. Sumner, D. (2010), "Two circular cylinders in cross-flow: A review", J. Fluids Struct., 26(6), 849-899. https://doi.org/10.1016/j.jfluidstructs.2010.07.001.
  44. Tokoro, S., Komatsu, H., Nakasu, M., Mizuguchi, K. and Kasuga, A. (2000), "Study on wake-galloping employing full aeroelastic twin cable model", J. Wind Eng. Ind. Aerod., 88(2-3), 247-261. https://doi.org/10.1016/S0167-6105(00)00052-0.
  45. Tsutsui, T. (2012), "Experimental study on the instantaneous fluid force acting on two circular cylinders closely arranged in tandem", J. Wind Eng. Ind. Aerod., 109, 46-54. https://doi.org/10.1016/j.jweia.2012.06.005.
  46. Wu, C., Yan, B., Huang, G., Zhang, B., Lv, Z. and Li, Q. (2018), "Wake-induced oscillation behaviour of twin bundle conductor transmission lines, R. Soc. Open Sci., 5(6), 180011. https://doi.org/10.1098/rsos.180011.
  47. Wu, J., Welch, L.W., Welsh, M.C., Sheridan, J. and Walker, G.J. (1994), "Spanwise wake structures of a circular cylinder and two circular cylinders in tandem", Int. J. Numer. Meth. Fl., 9(3), 299-308. https://doi.org/10.1016/0894-1777(94)90032-9.
  48. Wu, X., Jafari, M., Sarkar, P. and Sharma, A. (2020). "Verification of DES for flow over rigidly and elastically-mounted circular cylinders in normal and yawed flow", J. Fluids Struct., 94, 102895. https://doi.org/10.1016/j.jfluidstructs.2020.102895.
  49. Xu, G. and Zhou, Y. (2004), "Strouhal numbers in the wake of two inline cylinders", Exp. Fluids, 37(2), 248-256. https://doi.org/10.1007/s00348-004-0808-0.
  50. Yoshimura, T., Savage, M.G., Tanaka, H. and Wakasa, T. (1993), "A device for suppressing wake galloping of stay cables for cable-stayed bridges", J. Wind Eng. Ind. Aerod., 49(1-3), 497-505. https://doi.org/10.1016/0167-6105(93)90044-O.
  51. Zdravkovich, M. (1987), "The effects of interference between circular cylinders in cross-flow", J. Fluids Struct., 1(2), 239-261. https://doi.org/10.1016/S0889-9746(87)90355-0.
  52. Zdravkovich, M. (1977), "Review of flow interference between two circular cylinders in various arrangements", J. Fluids Eng., 99(4), 618-633. https://doi.org/10.1115/1.3448871.
  53. Zhou, Y. and Mahbub Alam, M. (2016), "Wake of two interacting circular cylinders: A review", Int. J. Heat Fluid Flow, 62(part B), 510-537. https://doi.org/10.1016/j.ijheatfluidflow.2016.08.008.

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