Effect of Annular Slit Geometry on Characteristics of Spiral Jet

作     者：Shigeru Matsuo Kwon-Hee Lee Shinsuke Oda Toshiaki Setoguchi Heuy-Dong Kim 

作者机构：Department of Mechanical Engineering Saga University 1 Honjo-machi Saga-shi Saga 840-8502Japan School of Mechanical Engineering College of Natural Science Andong National University388 Song-Cheon Dong Andong Kyung-Pook Korea 

出 版 物：《Journal of Thermal Science》 (热科学学报(英文版))

年 卷 期：2003年第12卷第3期

页      面：225-230页

核心收录：

学科分类：080704[工学-流体机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 

主　　题：spiral jet flow convergent nozzle annular slit LDV 

摘      要：A spiral flow using an annular slit connected to a conical cylinder does not need special device to generate a tangential velocity component of the flow and differs from swirling flows. Pressurized fluid is supplied to an annular chamber and injected into the convergent nozzle through the annular slit. The annular jet develops into the spiral flow. In the present study, a spiral jet discharged out of nozzle exit was obtained by using a convergent nozzle and an annular slit set in nozzle inlet, and the effect of annular slit geometry on characteristics of the spiral jet was investigated by using a Laser Doppler Velocimeter (LDV) experimentally. Furthermore, velocity distributions of the spiral jet were compared with those of a normal jet.