摘要
以黑龙江省亚布力滑雪场为工程背景,根据地形高程数据对复杂地形进行数字化建模,选取12个不同来流风向,采用基于地形过渡段及粗糙度壁面函数法的CFD(computational fluid dynamics, CFD)数值模拟对滑雪场的赛道与索道区域进行了风环境分析。结果表明:数值模拟结果与现场实测的偏差基本在20%以内,CFD数值模拟方法具有一定的准确性;来流风向为30°、60°、270°和330°时,滑雪场邻近山体对来流风的阻挡效应较大,赛道处的风速较小;各工况索道观测位置的平均风速放大系数基本大于1(来流风向270°除外);风攻角和风偏角整体受地形地势的影响,风攻角较大的位置出现在索道上站到5#观测点之间,风偏角变化较大的位置出现在索道上站到3#观测点之间。研究结论可以为滑雪项目赛训和索道安全运行提出建议。
Taking Yabuli Ski Resort in Heilongjiang Province as the engineering background,this study digitally models complex terrains by using terrain elevation data.The wind environment is analyzed based on 12 different incoming wind direction cases as well as CFD numerical simulation,which uses terrain transition sections and the roughness wall function method for the ski resort tracks and ropeway areas.The research results show that the deviations between the numerical simulations and the field measurements are basically less than 20%,so the CFD numerical simulation method has a certain level of accuracy.When the incoming wind direction is 30°,60°,270°and 330°,the mountains near the ski resort has a strong blocking effect on the incoming wind,and the wind speeds is lower at the racetracks.The mean wind speed amplification factors of all ropeway observation positions in each case are generally greater than 1(except for the incoming wind direction of 270°).The wind attack angles and wind yaw angles are affected by terrains:the positions with large wind attack angles are located between the upper station and the 5#observation point of the ropeway,while the positions with large changes in wind yaw angles are located between the upper station and the 3#observation point of the ropeway.The research conclusions of this study can be used as suggestions for skiing competitions and training as well as the safe operation of the ropeway.
作者
贺佳伟
赵亚哥白
张洪福
辛大波
HE Jiawei;ZHAO Yagebai;ZHANG Hongfu;XIN Dabo(School of Civil Engineering,Northeast Forestry University,Harbin 150040,China)
出处
《自然灾害学报》
CSCD
北大核心
2023年第2期51-60,共10页
Journal of Natural Disasters
基金
中央引导地方科技发展项目(ZY17C11)
中央高校科技平台持续发展项目(2572017PZ13)。
关键词
复杂地形
滑雪场
风环境
现场实测
数值模拟
complex terrain
ski resort
wind environment
field measurement
numerical simulation
