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Wind tunnel tests and CFD simulations for snow redistribution on 3D stepped flat roofs

  • Yu, Zhixiang (School of Civil Engineering, Southwest Jiaotong University) ;
  • Zhu, Fu (School of Civil Engineering, Southwest Jiaotong University) ;
  • Cao, Ruizhou (School of Civil Engineering, Southwest Jiaotong University) ;
  • Chen, Xiaoxiao (School of Civil Engineering, Southwest Jiaotong University) ;
  • Zhao, Lei (School of Civil Engineering, Southwest Jiaotong University) ;
  • Zhao, Shichun (School of Civil Engineering, Southwest Jiaotong University)
  • Received : 2018.01.30
  • Accepted : 2018.12.29
  • Published : 2019.01.25
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Abstract

The accurate prediction of snow distributions under the wind action on roofs plays an important role in designing structures in civil engineering in regions with heavy snowfall. Affected by some factors such as building shapes, sizes and layouts, the snow drifting on roofs shows more three-dimensional characteristics. Thus, the research on three-dimensional snow distribution is needed. Firstly, four groups of stepped flat roofs are designed, of which the width-height ratio is 3, 4, 5 and 6. Silica sand with average radius of 0.1 mm is used to model the snow particles and then the wind tunnel test of snow drifting on stepped flat roofs is carried out. 3D scanning is used to obtain the snow distribution after the test is finished and the mean mass transport rate is calculated. Next, the wind velocity and duration is determined for numerical simulations based on similarity criteria. The adaptive-mesh method based on radial basis function (RBF) interpolation is used to simulate the dynamic change of snow phase boundary on lower roofs and then a time-marching analysis of steady snow drifting is conducted. The overall trend of numerical results are generally consistent with the wind tunnel tests and field measurements, which validate the accuracy of the numerical simulation. The combination between the wind tunnel test and CFD simulation for three-dimensional typical roofs can provide certain reference to the prediction of the distribution of snow loads on typical roofs.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China

References

  1. Anno, Y. (1984), "Requirements for modeling of a snowdrift", Cold Reg. Sci. Technol., 8(3), 241-252. https://doi.org/10.1016/0165-232X(84)90055-7
  2. Anno, Y. (1985), "Modelling a snowdrift by means of activated clay particles", Ann. Glaciol., 6(1), 48-52. https://doi.org/10.1017/S0260305500009976
  3. ANSYS Fluent User's Guide 16.1
  4. Beyers, J.H.M., Sundsbo, P.A. and Harms, T.M. (2004), "Numerical simulation of three-dimensional, transient snow drifting around a cube", J. Wind Eng. Ind. Aerod., 92(9), 725-747. https://doi.org/10.1016/j.jweia.2004.03.011
  5. Beyers, M. and Waechter, B. (2008), "Modeling transient snowdrift development around complex three-dimensional structures", J. Wind Eng. Ind. Aerod., 96(10), 1603-1615. https://doi.org/10.1016/j.jweia.2008.02.032
  6. Bintanja, R. (2000), "Snowdrift suspension and atmospheric turbulence, Part I: Theoretical background and model description", Bound.-Lay. Meteorol., 95(3), 343-368. https://doi.org/10.1023/A:1002676804487
  7. Blocken, B. (2015), "Computational fluid dynamics for urban physics: Importance, scales, possibilities, limitations and ten tips and tricks towards accurate and reliable simulations", Build. Environ., 91, 219-245. https://doi.org/10.1016/j.buildenv.2015.02.015
  8. Dvorak, F.A. (1969), "Calculation of turbulent boundary layers on rough surfaces in pressure gradient", AIAA J., 7(9), 1752-1759. https://doi.org/10.2514/3.5386
  9. Franke, J., Hellsten, A., Schlunzen, H. and Carissimo, B. (2007), "Best practice guideline for the CFD Simulation of Flows in the Urban Environment", COST Office, Brussels. (3-00-018312-4).
  10. Haehnel, R.B., Wilkinson, J.H. and Lever, J.H. (1993), "Snowdrift modeling in the CRREL wind tunnel", Proceedings of the 50th Eastern Snow Conference, Quebec City, Quebec, June, 8-10.
  11. Humphrey, J.A.C. (1990), "Fundamentals of fluid motion in erosion by solid particle impact", Int. J. Heat Fluid. Fl., 11(3), 170-195. https://doi.org/10.1016/0142-727X(90)90036-B
  12. Isyumov, N. and Mikitiuk, M. (1990), "Wind tunnel model tests of snow drifting on a two-level flat roof", J. Wind Eng. Ind. Aerod., 36, 893-904. https://doi.org/10.1016/0167-6105(90)90086-R
  13. Isyumov, N. and Mikitiuk, M. (1992), "Wind tunnel modeling of snow accumulations on large-area roofs", Proceedings of the second International Conference on Snow Engineering, 181-193.
  14. Iversen, J.D. (1979), "Drifting snow similitude-drift deposition rate correlation", Proceedings of the 5th International Conference on Wind Engineering. Pergamon Press, Fort Collins, 1037-1080.
  15. Iversen, J.D. (1980), "Drifting-snow similitude-transport-rate and roughness modeling", J. Glaciol., 26(94), 393-403. https://doi.org/10.1017/S0022143000010923
  16. Kind, R.J. (1976), "A critical examination of the requirements for model simulation of wind-induced erosion/deposition phenomena such as snow drifting", Atmos. Environ., 10(3), 219-227. https://doi.org/10.1016/0004-6981(76)90094-9
  17. Kind, R.J. (1986), "Snowdrifting: a review of modelling methods", Cold Reg. Sci. Technol., 12(3), 217-228. https://doi.org/10.1016/0165-232X(86)90036-4
  18. Kind, R.J. and Murray, S.B. (1982), "Saltation flow measurements relating to modeling of snowdrifting", J. Wind Eng. Ind. Aerod., 10(1), 89-102. https://doi.org/10.1016/0167-6105(82)90056-3
  19. Kuroiwa, D., Mizuno, Y. and Takeuchi, M. (1967), "Micromeritical properties of snow", Proceedings of the International Conference on Low Temperature Science: Physics of Snow and Ice, 1, 751-772 (2).
  20. Kwok, K.C.S., Kim, D.H., Smedley, D.J. and Rohde, H.F. (1992), "Snowdrift around buildings for Antarctic environment", J. Wind Eng. Ind. Aerod., 44(1-3), 2797-2808. https://doi.org/10.1016/0167-6105(92)90073-J
  21. Liston, G.E., Brown, R.L. and Dent, J. (1994), "A computational model of two phase, turbulent atmospheric boundary layer with blowing snow", Proceedings of the Workshop on the Modelling of Windblown Snow and Sand.
  22. Liston, G.E., Brown, R.L. and Dent, J.D. (1993), "A twodimensional computational model of turbulent atmospheric surface flows with drifting snow", Ann. Glaciol., 18(1), 281-286. https://doi.org/10.1017/S0260305500011654
  23. Liston, G.E. and Sturm, M. (1998), "A snow-transport model for complex terrain", J. Glaciol., 44(148), 498-516. https://doi.org/10.1017/S0022143000002021
  24. Liu, M., Zhang, Q., Fan, F. and Shen, S. (2018), "Experiments on natural snow distribution around simplified building models based on open air snow-wind combined experimental facility", J. Wind Eng. Ind. Aerod., 173, 1-13. https://doi.org/10.1016/j.jweia.2017.12.010
  25. Majowiecki, M. (1998). "Snow and wind experimental analysis in the design of long-span sub-horizontal structures", J. Wind Eng. Ind. Aerod., 74, 795-807. https://doi.org/10.1016/S0167-6105(98)00072-5
  26. Murakami, S. (1993), "Comparison of various turbulence models applied to a bluff body", J. Wind Eng. Ind. Aerod., 46, 21-36. https://doi.org/10.1016/0167-6105(93)90112-2
  27. Murakami, S., Mochida, A. and Kato, S. (2003), "Development of local area wind prediction system for selecting suitable site for windmill", J. Wind Eng. Ind. Aerod., 91(12), 1759-1776. https://doi.org/10.1016/j.jweia.2003.09.040
  28. Naaim, M., Naaim-Bouvet, F. and Martinez, H. (1998), "Numerical simulation of drifting snow: erosion and deposition models", Ann. Glaciol., 26, 191-196. https://doi.org/10.1017/S0260305500014798
  29. O'Rourke, M., DeGaetano, A. and Tokarczyk, J.D. (2004), "Snow drifting transport rates from water flume simulation", J. Wind Eng. Ind. Aerod., 92(14), 1245-1264. https://doi.org/10.1016/j.jweia.2004.08.002
  30. Okaze, T., Takano, Y., Mochida, A. and Tominaga, Y. (2015), "Development of a new k-${\varepsilon}$ model to reproduce the aerodynamic effects of snow particles on a flow field", J. Wind Eng. Ind. Aerod., 144, 118-124. https://doi.org/10.1016/j.jweia.2015.04.016
  31. Powell, M.J. (1987), "Radial basis functions for multivariable interpolation: a review", Proceeding of the Algorithms for approximation, Clarendon Press, 143-167.
  32. Sato, T., Uematsu, T., Nakata, T. and Kaneda, Y. (1993), "Three dimensional numerical simulation of snowdrift", J. Wind Eng. Ind. Aerod., 46, 741-746. https://doi.org/10.1016/0167-6105(93)90344-N
  33. Satoh, K. and Takahashi, S. (2006), "Threshold wind velocity for snow drifting as a function of terminal fall velocity of snow particles", Bull. Glaciol. Res., 23(26), 13-21.
  34. Schaelin, A., Ilg, L. and Benesch, M. (2004), "Sow deposition around mountain hut-design optimization by CFD and scaled water channel model and realization of solutions", Proceedings of the Fifth International Conference on Snow Engineering, 5-8 July, Davos, Switzerland (p. 147), CRC Press.
  35. Serine, A., Shimura, M., Maruoka, A. and Hirano, H. (1999), "The numerical simulation of snowdrift around a building", Int. J. Comput. Fluid. D., 12(3-4), 249-255. https://doi.org/10.1080/10618569908940829
  36. Smedley, D.J., Kwok, K.C.S. and Kim, D.H. (1993), "Snowdrifting simulation around davis station workshop, Antarctica", J. Wind Eng. Ind. Aerod., 50, 153-162. https://doi.org/10.1016/0167-6105(93)90070-5
  37. Sundsbo, P.A. (1998), "Numerical simulations of wind deflection fins to control snow accumulation in building steps", J. Wind Eng. Ind. Aerod., 74, 543-552. https://doi.org/10.1016/S0167-6105(98)00049-X
  38. Tominaga, Y. (2017), "Computational fluid dynamics simulation of snowdrift around buildings: Past achievements and future perspectives", Cold. Reg. Sci. Technol., 150, 2-14. https://doi.org/10.1016/j.coldregions.2017.05.004
  39. Tominaga, Y., Akabayashi, S.I., Kitahara, T. and Arinami, Y. (2015), "Air flow around isolated gable-roof buildings with different roof pitches: Wind tunnel experiments and CFD simulations", Build. Environ., 84, 204-213. https://doi.org/10.1016/j.buildenv.2014.11.012
  40. Tominaga, Y., Mochida, A., Yoshie, R., Kataoka, H., Nozu, T., Yoshikawa, M. and Shirasawa, T. (2008), "AIJ guidelines for practical applications of CFD to pedestrian wind environment around buildings", J. Wind Eng. Ind. Aerod., 96(10), 1749-1761. https://doi.org/10.1016/j.jweia.2008.02.058
  41. Tominaga, Y., Mochida, A., Yoshino, H., Shida, T. and Okaze, T. (2006), "CFD prediction of snowdrift around a cubic building model", Proceeding of the fourth International Symposium on Computational Wind Engineering (CWE2006), Yokohama, Japan Vol. 26.
  42. Tominaga, Y., Okaze, T. and Mochida, A. (2011), "CFD modeling of snowdrift around a building: An overview of models and evaluation of a new approach", Build. Environ., 46(4), 899-910. https://doi.org/10.1016/j.buildenv.2010.10.020
  43. Tominaga, Y., Okaze, T., Mochida, A., Nemoto, M. and Ito, Y. (2009), "Prediction of snowdrift around a cube using CFD Model incorporating effect of snow particles on turbulent flow", Proceeding of the seventh Asia-Pacific Conference on Wind Engineering, Taipei, Taiwan.
  44. Tsuchiya, M., Tomabechi, T., Hongo, T. and Ueda, H. (2002), "Wind effects on snowdrift on stepped flat roofs", J. Wind Eng. Ind. Aerod., 90(12-15), 1881-1892. https://doi.org/10.1016/S0167-6105(02)00295-7
  45. Tutsumi, T., Chiba, T. and Tomabechi, T. (2012), "Snowdrifts on and around buildings based on field measurement", Proceedings of the 7th International Conference on Snow Engineering (Snow Engineering VII), Fukui, Japan.
  46. Uematsu, T., Nakata, T., Takeuchi, K., Arisawa, Y. and Kaneda, Y. (1991), "Three-dimensional numerical simulation of snowdrift", Cold Reg. Sci. Technol., 20(1), 65-73. https://doi.org/10.1016/0165-232X(91)90057-N
  47. Wang, W.H., Liao, H.L. and Li, M.S. (2013), "Numerical simulation of wind-induced roof snow distributions based on time variable boundary", J. Southwest Jiaotong Univ., 5, 851-856+967 (in Chinese).
  48. Wang, W.H., Liao, H.L. and Li, M.S. (2014), "Wind tunnel test on wind-induced roof snow distribution", Build. Struct., 35(5), 135-141. (in Chinese).
  49. Zhao, L., Yu, Z., Zhu, F., Qi, X. and Zhao, S. (2016). "CFD-DEM modeling of snowdrifts on stepped flat roofs", Wind Struct., 23(6), 523-542. https://doi.org/10.12989/was.2016.23.6.523
  50. Zhou, X., Hu, J. and Gu, M. (2014), "Wind tunnel test of snow loads on a stepped flat roof using different granular materials", Nat. Hazards, 74(3), 1629-1648. https://doi.org/10.1007/s11069-014-1296-z
  51. Zhou, X., Kang, L., Gu, M., Qiu, L. and Hu, J. (2016), "Numerical simulation and wind tunnel test for redistribution of snow on a flat roof", J. Wind Eng. Ind. Aerod., 153, 92-105. https://doi.org/10.1016/j.jweia.2016.03.008
  52. Zhou, X., Kang, L., Yuan, X. and Gu, M. (2016), "Wind tunnel test of snow redistribution on flat roofs", Cold Reg. Sci. Technol., 127, 49-56. https://doi.org/10.1016/j.coldregions.2016.04.006
  53. Zhu, F., Yu, Z., Zhao, L., Xue, M. and Zhao, S. (2017), "Adaptivemesh method using RBF interpolation: A time-marching analysis of steady snow drifting on stepped flat roofs", J. Wind Eng. Ind. Aerod., 171, 1-11. https://doi.org/10.1016/j.jweia.2017.09.008

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