Numerical simulation of snow drifting on typical form of long-span roofs

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Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (18) : 36-42.

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Numerical simulation of snow drifting on typical form of long-span roofs

Sun Xiaoying1,2,Hong caibin2,3,Wu Yue1,2

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Abstract

Flow around the roof can cause the complex movement of the snow on the long-span roof, which results in uneven distribution of the snow. In recent years, the collapse of the long-span roof caused by uneven distribution of snow has been common, so it is very important to predict the distribution of snow on the long-span roof correctly. In this paper, based on the Mixture model and turbulent model, the numerical simulation of snow drifting has been performed on typical form of long-span roofs. The characteristics of snow distribution are discussed considering some parameters such as wind direction and rise-span ratio. Then the simulation result is compared with Chinese Code for the flat roof and cylinder roof.

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long-span roofs / snow drifting / numerical simulation / comparing with codes

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Sun Xiaoying;Hong caibin;Wu Yue;. Numerical simulation of snow drifting on typical form of long-span roofs[J]. Journal of Vibration and Shock, 2014, 33(18): 36-42