CAJ | 학술논문

基于Fluent 6．3软件平台，采用RNG k －ε湍流模型，对日本东京工艺大学风洞试验模型及数据进行了验证，结果表明数值模拟与风洞实验数据拟合较好．同时，对2栋相同低矮双坡屋面建筑在不同受扰建筑布置角度时对建筑群的影响进行了数值模拟分析，结果表明，施扰建筑的表面风压分布及大小受影响较小，与单体建筑表面风压接近；而受扰建筑的影响相对较为明显，尤其是施扰建筑与受扰建筑纵轴夹角不大的情况下，受扰建筑屋脊背风面角部负风压较大．研究结果对低矮建筑群的风效应研究具有参考价值．
기우Fluent 6．3연건평태，채용RNG k －ε단류모형，대일본동경공예대학풍동시험모형급수거진행료험증，결과표명수치모의여풍동실험수거의합교호．동시，대2동상동저왜쌍파옥면건축재불동수우건축포치각도시대건축군적영향진행료수치모의분석，결과표명，시우건축적표면풍압분포급대소수영향교소，여단체건축표면풍압접근；이수우건축적영향상대교위명현，우기시시우건축여수우건축종축협각불대적정황하，수우건축옥척배풍면각부부풍압교대．연구결과대저왜건축군적풍효응연구구유삼고개치．
A RNG k -εmodel,the reynolds averaged navier -stokes equations (RANS )turbulence model,was added in software Fluent 6.3 to simulate the wind tunnel model of Tokyo Polytechnic University,it turned out that simulating results fit well with the wind tunnel test data.Then a detailed simulation analysis was performed for average pressure coefficient of two same low-rise gable-roofed buildings which at different angles of the downstream building.The results show that the average pressure coefficient of upstream building is hardly affected by the angle changing of the downstream building,and its surface pressure is close to individual building.But the downstream building is affected relatively clear especially the corner area of ridge at small angles.The results of the study have reference value for wind effect research of low-rise buildings.