CAJ | 학술논문

通过西安市1幢既有高层住宅建立几何模型，以西安地区的自然气候条件为基础，运用CFD软件模拟外墙外表面的对流换热系数情况。研究结果表明风速对高层建筑对流换热系数影响很大，并成正比例关系；建筑高度对对流换热系数也有一定影响，主要表现在迎风面上成正比，背风面上无明显影响；风向投射角也会影响高层建筑表面的对流换热系数，在迎风面上随着夹角的变大对流换热系数也变大，对背风面无太大影响。
통과서안시1당기유고층주택건립궤하모형，이서안지구적자연기후조건위기출，운용CFD연건모의외장외표면적대류환열계수정황。연구결과표명풍속대고층건축대류환열계수영향흔대，병성정비례관계；건축고도대대류환열계수야유일정영향，주요표현재영풍면상성정비，배풍면상무명현영향；풍향투사각야회영향고층건축표면적대류환열계수，재영풍면상수착협각적변대대류환열계수야변대，대배풍면무태대영향。
Based on Xi'an natural climatic conditions, the Xi'an geometric model is built by an exist-ing high-rise residential. The convective heat transfer coefficient of exterior surface is simulated with CFD software. The results show that the influence of wind speed on the convective heat transfer coefficient of high-rise building is great and proportional; building height also have some impact on the convective heat transfer coefficient, mainly in proportion to the windward side, and no significant effect to the leeward side;the wind projection angle will also affect the surface convective heat transfer coefficient of high-rise build-ings, the convective heat transfer coefficient becomes larger as the windward side angle is larger, without much impact on the leeward side.