技术中心

【英文篇名】 Experimental study on air distribution in the form of wedge jet flow 【作者中文名】 赵静野; 陈文龙; 宋耳心; 【作者英文名】 By Zhao Jingye ★; Chen Wenlong and Song Erxin ★Beijing Institute of Civil Engineering and Architecture; China; 【作者单位】 北京建筑工程学院; 【文献出处】 暖通空调, Hv 通风; 散流器; 【英文关键词】 diffuse jet flow; ventilation; diffuser; 【摘要】 通过实验分析了平面楔形射流在不同的楔角及边壁条件下形成的流场特性。研究表明 ,无论是有边壁的半受限楔形射流 ,还是无边壁的自由楔形射流 ,都存在一个临界楔角 ,偏离此临界角 ,射流所形成的分散射流都将失稳而成为向上或向下的贴附射流。 【英文摘要】 Examines characteristics of the air flow field in the plane wedge jet flow for different wedge angles and boundary conditions through experiment. The results show that there exists a critical angle for both the half-constrained wedge jet flow with boundary and free wedge jet flow without boundary. If deviated from the critical wedge angle, the air distribution caused by the wedge will be instable and turn into up or down attached jet flow.