基于计算流体力学的杭州亚运场馆大风风险模拟  

A Study on Risk Simulation of Strong Wind at Hangzhou Asian Games Venues Based on Computational Fluid Dynamics

作　　者：张育慧 樊高峰[1] 何月[1] 蔡菊珍 肖晶晶[1] 俞布[2] ZHANG Yuhui;FAN Gaofeng;HE Yue;CAI Juzhen;XIAO Jingjing;YU Bu(Zhejiang Climate Center,Hangzhou 310007;Hangzhou Meteorological Office,Hangzhou 310007)

机构地区：[1]浙江省气候中心,杭州310007 [2]杭州市气象局,杭州310007

出　　处：《气候与环境研究》2025年第1期107-115,共9页Climatic and Environmental Research

基　　金：浙江省基础公益计划项目LGF22D050007;浙江省气象局科技计划项目2022ZD07、2022ZD10;中国气象局卫星专项FY-3(03)-AS-12.13。

摘　　要：以2007年10月8日第16号台风“罗莎”为背景场,对杭州亚运场馆奥体区域进行大风风险模拟,结果表明:模型的绝对误差在0.3m/s以内,模型具有一定的可靠性;在8级风影响的设计情景下,杭州亚运奥体场馆区域内建筑群平均风速为12.9m/s,在高层建筑的狭管处区域风速超过了30m/s,最大风速达35.7m/s;台风大风强度超过24.6m/s(拔起树木)的危险性区域面积占比4.3%;台风大风强度超过20.8m/s(吹动屋瓦)的危险性区域面积占比9.8%;奥体中心体育场内部受到建筑的阻挡作用,受到外界大风天气的影响较小,对观众和运动员有较好的保护作用。研究成果对后期制定相关策略具有参考价值,加强亚运会体育场馆对大风的监测能力,分钟级气象预报与干预能力,特别是涉及室外运动项目的场馆所在区域,实行重点区域网格化应急布控与保障。The risk of high wind speeds in the Hangzhou Olympic Sports Center Stadium Area during the Asian Games was assessed by using Computational Fluid Dynamics(CFD)method during the the typhoon Krosa period.The results show that the model is reliable,with an absolute error within 0.3 m/s.Under the initial simulation conditions of a fresh gale,the average wind speed inside the area is 12.9 m/s.Wind speeds exceed 30 m/s in narrow passages between high-rise buildings,with a maximum wind speed of 35.7 m/s.Areas at risk of wind intensity exceeding 24.6 m/s(capable of uprooting trees)account for 4.3%of the total area.Areas with wind intensity exceeding 20.8 m/s(capable of damaging roof tiles)constitute 9.8%of the total study area.The Hangzhou Olympic Sports Center Stadium benefits from the protective effect of surrounding buildings and experiences less impact from strong winds,thereby providing better protection for spectators and athletes.This research has significant implications for formulating relevant strategies to strengthen monitoring and intervention capabilities for strong winds in sports venues during the Asian Games,particularly for outdoor sports facilities within the venue area.The implementation of emergency control measures and safeguards in key areas through a grid-based approach with minute-level meteorological forecasts is recommended.

关 键 词：计算流体力学模拟 亚运场馆 台风 大风风险 

分 类 号：P435[天文地球—大气科学及气象学]