A Study on Rotor Blades for a Two-Stage Jet Fan

摘要：

A jet fan used for road tunnel ventilation is an axial flow fan that has an ability to shift the direction of airflow if necessary. To satisfy the need, the identical performance of jet fan for both flow directions should be fundamental. As shifting the flow direction is made by only switching the rotational direction of an electric motor, a blade having symmetrical section profile has been widely used. In recent years, higher performance of jet fan is expected from the viewpoint of minimum energy consumption. Thus, we have been engaged in R&D of a jet fan using a model of JF600.In this paper, we demonstrate an idea to profile the section of rotor blade suitable for bi-directional flow, which is verified by using the aerodynamic performances of a two-stage jet fan obtained experimentally and numerically.

关键词： jet fan two-stage rotor blade bi-directional flow aerodynamic performance turbulent flow analysis

作者: Michihiro Nishi Kouichi Yoshida Minoru Okamoto Hiroyasu Nakayama

作者单位: Kyushu Institute of Technology, Sensui-cho 1, Tobata, Kitakyushu 804-8550, Japan Kyushu Womens University, 1-1 Jiyugaoka, Yahatanishi, Kitakyushu 807-8586, Japan Kitakyushu National College of Technology, 5-20-1 Shii, Kokuraminami, Kitakyushu 802-0985, Japan

会议类型: 国际会议

会议名称: The Fourth International Symposium on Fluid Machinery and Fluid Engineering(第四届流体机械与流体工程国际会议)

会议地点: 北京

会议语种:英文

页码: 249-254

在线出版日期: 2008-11-25（万方平台首次上网日期，不代表论文的发表时间）