Performance and Flow Condition of Small-Sized Axial Fan and Adoption of Contra-Rotating Rotors

作     者：T.Shigemitsu J.Fukutomi Y.Okabe 

作者机构：Institute of Technology and ScienceThe University of Tokushima2-1 Minamijyosanjima-choTokushima 770-8506JAPAN Graduate School of Advanced Technology and ScienceThe University of Tokushima2-1 Minamijyosanjima-choTokushima 770-8506JAPAN 

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

年 卷 期：2010年第19卷第1期

页      面：1-6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] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supports by the project research aid from The University of Tokushima Japan Science and Technology Agency and Komiya research aid 

主　　题：Small-sized axial fan Contra-rotating rotors Numerical analysis Performance Internal flow 

摘      要：Small-sized axial fans are used as air coolers for electric *** there is a strong demand for higher power of fans according to the increase of quantity of heat from electric ***,higher rotational speed design is conducted,although it causes the deterioration of the efficiency and the increase of *** the adoption of contra-rotating rotors for the small-sized axial fan is proposed for the improvement of the *** the present paper,the performance and the internal flow condition of the small-sized axial fan are shown as a first step of the research for the contra-rotating small-sized axial fan and the important points to apply contra-rotating rotors to the small-sized axial fan are ***,the numerical flow analysis is conducted to investigate the performance of the contra-rotating small-sized axial fan and internal flow conditions and pressure distributions are clarified and the effect of contra-rotating rotors is considered.