台风“莫拉菲”登陆期间深圳排牙山周边风场结构的数值模拟研究  

NUMERICAL STUDY OF THE FINE-SCALE WIND STRUCTURE OVER THE PAIYA MOUNTAIN IN SHENZHEN DURING THE LANDING PERIOD OF TYPHOON MOLAVE

作　　者：李磊[1,2] 柳艳香[3] 张立杰[1] 谭明艳[1] 莫静华[1] 马锋波[1] 

机构地区：[1]深圳市国家气候观象台/深圳市气象局,广东深圳518040 [2]中国科学院大气物理研究所大气边界层物理和大气化学国家重点实验室,北京100029 [3]中国气象局公共气象服务中心,北京100081

出　　处：《热带气象学报》2012年第6期911-918,共8页Journal of Tropical Meteorology

基　　金：国家自然科学基金项目(40805004;90715031);中国科学院大气物理研究所大气边界层物理和大气化学国家重点实验室(LAPC)开放课题;国家气候中心风能资源详查和评价工作小型类研究项目技术报告(CWERA2010002)共同资助

摘　　要：以计算流体力学软件FLUENT为工具,模拟台风"莫拉菲"登陆期间深圳大鹏半岛排牙山周边的风场三维结构。通过研究得到了强风条件下山地风场的概念模型,并得到以下结论:(1)FLUENT可较合理地模拟出强风条件下复杂地形的三维风场结构,描述山体对于风场和湍流场的影响;(2)山体的动力学效应可使高大山体迎风侧和山顶之上的局地风速加大;(3)高大山体背风侧为弱风区、风速强切变区和强湍流区。Based on the commercial CFD software FLUENT, the three dimensional wind structure over the Paiyashan Mountain of Dapeng peninsula in Shenzhen is simulated and analyzed for the landing period of typhoon Molave. In this study, a conceptual model for the wind structure characteristics over mountainous area on condition of strong wind is formulated. The conclusions are given as follows： （1） FLUENT can reasonably describe the three dimensional wind structure over mountainous area on condition of strong wind; （2） The dynamic effect of mountains can amplify the wind speed in the windward side of the mountain and the area over the mountain top; （3） The wind speed is relatively low in the lee side of mountain. However, wind varies significantly and the turbulent strength is relatively strong in this area.

关 键 词：应用气象学 台风 数值模拟 风场结构 深圳 山区 

分 类 号：P435[天文地球—大气科学及气象学]