板式建筑通风廊道的多角度构成对风环境的影响  

Wind Environmental Conditions in Passages between Two Long Narrow Buildings with Different Directions

作　　者：李彪[1] 罗志文 刘京[1,3] 水滔滔 

机构地区：[1]哈尔滨工业大学市政环境工程学院,哈尔滨150090 [2]School of Construction Management and Engineering,University of Reading [3]哈尔滨工业大学城市水资源与水环境国家重点实验室,哈尔滨150090

出　　处：《建筑科学》2014年第8期85-89,共5页Building Science

基　　金：中建股份科技研发课题"中国建筑千米级摩天大楼机电研究"(CSCEC-2010-Z-01);城市水资源与水环境国家重点实验室开放课题"城市河流对城市热气候影响的CFD研究"(2010TS04)

摘　　要：为考察板式建筑构成的通风廊道对风环境的影响及其内在机理,本文以既有的风洞实验为基础,采用单一因素的建筑夹角变化构建典型建筑通风廊道模型,形成0°到180°共12个模拟工况。采用精细的六面体网格实施数值模拟,考虑计算域的水平均匀性和网格无关性并进行实验验证。结论表明风环境变化规律与建筑迎风面积变化显著相关;认为建筑角隅风是廊道中高风速的主要组成部分,上游位置角隅风大导致扩张型廊道的最大风速较汇聚型大;15°和30°2个工况在整个通道内K值小于1,无文丘里效应。同时,文章依据通风廊道的风速分布分析结果为建筑和规划领域提供了指导性的布局依据。frontal area and the wind environment; the corner wind is the main component of the high speed flow in passage, and upstream location of the small cross-section that caused the maximum wind speed in the corridor of converge passage is larger; K values in the corridor of the 15° and 30° two conditions are less than 1, without Venturi effect appearance. At the same time, some conclusions based on the wind speed distribution analyses are provided for guiding the layouts of buildings in architecture and planning. Keywords： passages, wind environment, wind-blocking effect, Computational Fluid Dynamics

关 键 词：建筑通风廊道 风环境 建筑阻挡效应 CFD 

分 类 号：TU119[建筑科学—建筑理论]