CAJ | 학술논문

利用CFD分析软件Fluent，基于标准的k-ε湍流模型，分析了温差对建筑物流场的分布。结果表明：在建筑物背风面的尾流区，温差对建筑物风场的影响极为明显，越靠近地面对风速和湍流强度的加强作用越明显，随着高度升高，温差的影响效果减弱；温差对最大风速出现的位置没有影响，只是改变了最大风速的数值。实际分析表明，温差对建筑物的风场存在影响，在进行建筑物风场分析时，需要考虑温差的影响。
이용CFD분석연건Fluent，기우표준적k-ε단류모형，분석료온차대건축물류장적분포。결과표명：재건축물배풍면적미류구，온차대건축물풍장적영향겁위명현，월고근지면대풍속화단류강도적가강작용월명현，수착고도승고，온차적영향효과감약；온차대최대풍속출현적위치몰유영향，지시개변료최대풍속적수치。실제분석표명，온차대건축물적풍장존재영향，재진행건축물풍장분석시，수요고필온차적영향。
By using the CFD analysis software Fluent and based on the standard k-ε turbulence model,this paper deals with the temperature difference affects the flow around the buildings with different spacing. The result shows in the wake area of the building,the influence of the temperature difference on the wind farm is obvious. The closer it is to the ground,the stronger the strengthening function will be,while the height increases,the influence gets weak. Meanwhile,it is found that the temperature difference doesn't change the location of the maximum wind speed,but changes its value. The actual analy-sis shows that the temperature difference has effects on the wind farm around the buildings;therefore the temperature difference should be taken into consideration in analyzing the wind farm around buildings.