Passive Control of Unstable Characteristics of a High Specific Speed Diagonal-Flow Fan by an Annular Wing-Reference-Cited by-同舟云学术

Passive Control of Unstable Characteristics of a High Specific Speed Diagonal-Flow Fan by an Annular Wing

Published:1991-10-01 Issue:4 Volume:113 Page:703-709
ISSN:0889-504X
Container-title:Journal of Turbomachinery
language:en
Short-container-title:

Author:

Kaneko K.¹,Setoguchi T.¹,Inoue M.²

Affiliation:

1. Department of Mechanical Engineering, Saga University, Saga, Japan

2. Department of Mechanical Engineering, Power Division, Kyushu University, Fukuoka, Japan

Abstract

Passive Control of the unstable characteristics of a high specific speed diagonal-flow fan has been proposed. It is possible to eliminate the unstable characteristics of the pressure-flow rate curve in a low-flow region without deterioration of performance at design point. The control action is done naturally (passively) without any energy input. The inlet nozzle of an ordinary diagonal-flow fan was replaced by an annular wing with a Go¨ttingen 625 airfoil section. The mechanism of the passive control and the optimum geometric parameter are discussed on the basis of performance tests and internal flow measurements.

Publisher

ASME International

Subject

Mechanical Engineering

Link

http://asmedigitalcollection.asme.org/turbomachinery/article-pdf/113/4/703/5940380/703_1.pdf

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