群体建筑环境中的风能利用效能研究

发布时间：2018-06-12 00:07

本文选题：建筑环境 + 风能利用　；参考：《浙江大学》2014年硕士论文

【摘要】：随着城市现代化的不断发展,密集建筑群的体型、布局已经成为影响建筑环境中风能利用的重要因素。相邻建筑之间的相互干扰,使得流态异常复杂,对其进行研究具有重要意义。本文从建筑环境中的风能利用出发,研究了不同平面、不同立面布局下建筑物的集风效能,并分析了垂直轴风力机旋转对风场的影响。本文首先研究了平面布局对风能效应的影响,用计算流体力学的方法对建筑群周围风环境进行数值模拟,比较了不同体型的建筑物侧排集风效能,分析了七种不同平面布局下,建筑群屋顶及侧排的可利用风能,总结出有利于提高风能利用的建筑体型及排布方式。其次,论文对两座串联布置的高层建筑周围风场进行了研究,通过改变建筑的高差、间距、宽度以及屋顶形式,找到了影响目标建筑屋顶风速的关键因素。为了研究风力机安装后对建筑风场的影响,论文进一步运用滑移网格的方法通过二维数值模拟了小型垂直轴风力机旋转情况,得到了相应的风场分布,总结了风力机尾流速度与叶尖比的关系。最后,论文以杭州市钱江新城的市民中心为群体建筑实例,研究其风能可利用的若干位置,并针对加强建筑屋顶风速,提出高度优化方案。
[Abstract]:With the continuous development of urban modernization, the size and layout of dense buildings have become an important factor affecting the utilization of architectural environment stroke. Because of the interferences between adjacent buildings, the flow pattern is very complicated, so it is of great significance to study it. Based on the use of wind energy in the building environment, this paper studies the wind collecting efficiency of buildings with different planes and different facades. The influence of vertical axis wind turbine rotation on wind field is analyzed. Firstly, the influence of plane layout on wind energy effect is studied, and the wind environment around the building group is numerically simulated by computational fluid dynamics. This paper compares the wind collecting efficiency of different types of buildings, analyzes the available wind energy of roof and side row of building group under seven different plane layout, and sums up the building shape and arrangement mode which is beneficial to improve the utilization of wind energy. Secondly, The paper studies the wind field around two high-rise buildings arranged in series, by changing the height difference, spacing, width and roof form. In order to study the influence of wind turbine installation on building wind field, the rotation of small vertical axis wind turbine is simulated by using sliding grid method. The corresponding wind field distribution is obtained, and the relationship between the wind turbine tail flow velocity and the blade tip ratio is summarized. Finally, taking the citizen center of Qianjiang New Town in Hangzhou as a group building example, this paper studies some locations where the wind energy can be used. Aiming at strengthening the wind speed of building roof, a height optimization scheme is put forward.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU119;TU18

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