CAREER: Behavior of Hurricane Wind and Wind-Driven Rain in the Coastal Suburban Roughness Sublayer

职业：沿海郊区粗糙次层中飓风和风雨的行为

• 批准号: 1055744
• 负责人: Forrest Masters
• 金额: $ 40.25万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-03-01 至 2017-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1055744&HistoricalAwards=false
• 关键词: CAREER; Behavior; Hurricane; Wind; Driven

The research objective of this Faculty Early Career Development (CAREER) program project is to define the tropical cyclone surface wind field, wind-driven rain characteristics and wind loading in the built environment. The goal is to determine how localized, coherent features occurring in the rough-wall turbulent boundary layer and larger-scale convective features (such as meso-vortices, rainband core downdrafts) influence the surface wind field characteristics and loading on low-rise structures. The project will utilize the instrumented towers managed by Florida Coastal Monitoring Program. The towers will be retrofitted to collect turbulence and wind-driven profile measurements and will be deployed in coastal suburban communities where the most damaging winds are expected to occur. These observational towers will be located inside mobile Doppler radar networks that are deployed by the Digital Hurricane Consortium to determine if convective features aloft modulate the ground level wind structure. The wind field data will be coupled with pressure measurements on single-family homes to directly relate the peak load conditions to the full spectrum of the wind effects.The project addresses the important issue of the interaction of hurricane induced winds with engineered structures. The project will provide important data for wind tunnel and computational modeling, evaluation of the existing provisions in building codes and standards, cost effective damage mitigation measures, and resilient design of structures. The project will also strengthen interactions between the wind engineering and atmospheric science disciplines. The project will provide advanced training to graduate and undergraduate students through their direct involvement in the project work. Middle school teachers from under-resourced schools located in hurricane-prone areas will participate in a pilot initiative called the Hurricane Hazard Immersion Program. This program is expected to enhance the 6-8th grade curriculum of over 7500 students living along the hurricane prone coast through annual training and active participation of 25 middle school teachers in the project research. The program is designed to be sustainable beyond the project duration; it will target underrepresented groups and foster a culture of hazard preparedness and proactive mitigation among the next generation of homeowners.

这个教师早期职业发展（职业）计划项目的研究目标是定义热带气旋的表面风场，风向降雨特征和在建筑环境中的风负载。目的是确定在粗糙的湍流边界层中发生的局部，连贯的特征以及更大尺度的对流特征（例如中旋涡流，雨带核心向下气流）如何影响表面风场特征和对低层结构的负载。该项目将利用佛罗里达沿海监测计划管理的仪器塔。 这些塔将进行改装，以收集湍流和风向轮廓测量，并将部署在预计最具破坏性风的沿海郊区社区中。这些观察塔将位于移动多普勒雷达网络中，这些网络由数字飓风财团部署，以确定对流的特征是否会在地面级别的风结构中调节。风场数据将与单户住宅上的压力测量结合起来，以将峰值负载条件与风效应的全光谱直接相关联。该项目解决了飓风诱导的风与工程结构相互作用的重要问题。该项目将为风洞和计算建模提供重要的数据，对建筑物代码和标准中现有规定的评估，减轻成本损失的措施以及结构的弹性设计。该项目还将加强风工程与大气科学学科之间的相互作用。该项目将通过直接参与项目工作为研究生和本科生提供高级培训。位于飓风易于的地区的资源不足学校的中学教师将参加一项名为“飓风危险浸入计划”的试点计划。预计该计划将通过年度培训和25名中学教师在项目研究中的年度培训和积极参与，从而增强7500多名居住在飓风海岸的学生的6 - 8年级课程。该计划旨在超出项目持续时间的可持续性；它将针对代表性不足的群体，并促进下一代房主的危害准备和积极缓解的文化。