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首页> 外文期刊>Journal of aerospace engineering >Initial Investigation into the Protection of Manufactured-Home Parks from Hurricanes Using Wind-Deflection Barriers
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Initial Investigation into the Protection of Manufactured-Home Parks from Hurricanes Using Wind-Deflection Barriers

机译：利用风向屏障保护人工住宅公园免受飓风影响的初步研究

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Parks containing manufactured homes and trailers exist in the hurricane-prone areas of the southern United States. Homes in these parks may suffer heavy damage from high-speed winds. This paper's objective is to present a methodology and to provide suggestions to the engineering community and protection agencies such as FEMA and the U.S. Army Corps of Engineers (USACE) about a method to lessen damage to groups of manufactured homes. To support the development of this methodology with analysis, an unsteady, Reynolds-averaged, Navier-Stokes computational tool was employed to model a manufactured-home park to evaluate how well a wind barrier installed along its upwind periphery could establish skimming flow over all the buildings in the park. A manufactured-home park that had existed in Punta Gorda, Florida, was studied because satellite pictures before and after it was heavily damaged by Hurricane Charley on August 13, 2004, were available. Computations were performed using a computer program and the k - omega shear-stress transport model with enhanced wall treatment to capture most of the flow features near the barrier and building walls. A 3.05-m high barrier slanted downwind at 45 degrees to the horizontal was placed along the southern and western sides of the park at spacing-to-building height (b/h) ratios of 0.1, 0.5, and 1.0. Comparisons with the no-barrier case were made using the pressure coefficient and wind speed. Both were considerably reduced throughout the park by the barrier. Pertinent concluding remarks and suggestions to the engineering community are presented. (C) 2014 American Society of Civil Engineers.
机译：在美国南部容易遭受飓风袭击的地区，存在装有人造房屋和拖车的公园。这些公园中的房屋可能会因高速风而遭受严重破坏。本文的目的是提出一种方法，并向工程界和保护机构（例如FEMA和美国陆军工程兵团（USACE））提供有关减少对预制房屋群的损害的方法的建议。为了通过分析来支持这种方法的发展，采用了非稳态的，雷诺平均的Navier-Stokes计算工具来对工业园区进行建模，以评估沿其上风周缘安装的挡风板能在所有区域上形成掠流的能力。公园里的建筑物。研究了佛罗里达州蓬塔戈尔达（Punta Gorda）上存在的一个人造房屋公园，因为可获得2004年8月13日飓风“查理”（Charric）严重破坏前后的卫星图像。使用计算机程序和k-omega剪应力传递模型进行了计算，并进行了增强的墙处理，以捕获屏障和建筑物墙附近的大多数流动特征。沿着公园南侧和西侧放置了一个3.05米高的障碍物，该障碍物沿顺风向水平方向倾斜45度，与建筑物的高度（b / h）之比为0.1、0.5和1.0。使用压力系数和风速与无障碍情况进行了比较。整个公园都被障碍物大大减少了。向工程界提出了相关的总结性意见和建议。 （C）2014年美国土木工程师学会。

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