Computation and Measurement of the Flow in Axial Flow Fans With Skewed Blades-Reference-Cited by-同舟云学术

Computation and Measurement of the Flow in Axial Flow Fans With Skewed Blades

Published:1999-01-01 Issue:1 Volume:121 Page:59-66
ISSN:0889-504X
Container-title:Journal of Turbomachinery
language:en
Short-container-title:

Author:

Beiler M. G.¹,Carolus T. H.¹

Affiliation:

1. University of Siegen, Germany

Abstract

A numerical analysis of the flow in axial flow fans with skewed blades has been conducted to study the three-dimensional flow phenomena pertaining to this type of blade shape. The particular fans have a low pressure rise and are designed without stator. Initial studies focused on blades skewed in the circumferential direction, followed by investigations of blades swept in the direction of the blade chord. A Navier–Stokes code was used to investigate the flow. The simulation results of several fans were validated experimentally. The three-dimensional velocity field was measured in the fixed frame of reference with a triple sensor hot-film probe. Total pressure distribution measurements were performed with a fast response total pressure probe. The results were analyzed, leading to a design method for fans with swept blades. Forward swept fans designed accordingly exhibited good aerodynamic performance. The sound power level, measured on an acoustic fan test facility, improved.

Publisher

ASME International

Subject

Mechanical Engineering

Link

http://asmedigitalcollection.asme.org/turbomachinery/article-pdf/121/1/59/5725321/59_1.pdf

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3. Brown, N. A., 1977, “The Use of Skewed Blades for Ship Propellers and Truck Fans,” Noise and Fluids Eng., ASME, pp. 201–207.

4. Carolus, T. H., and Scheidel, W., 1988, “Bemerkungen zum Einsatz schnella¨ufiger Axiallu¨fter in Motorku¨hlsystemen von Kraftfahrzeugen,” Mitteilungen Institut fu¨r Stro¨mungsmechanik, und Stro¨mungsmaschinen, Universita¨t’ Karlsruhe, Heft 39, pp. 19–26.

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