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Effects of louvres on the noise of an axial flow fan

✍ Scribed by P.E. Doak; D.N. May

Publisher
Elsevier Science
Year
1971
Tongue
English
Weight
388 KB
Volume
15
Category
Article
ISSN
0022-460X

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πŸ“œ SIMILAR VOLUMES

Experimental studies of discrete tone no
Experimental studies of discrete tone noise from an axial flow fan
✍ N. Chandrashekhara πŸ“‚ Article πŸ“… 1970 πŸ› Elsevier Science 🌐 English βš– 290 KB

Some measurements of discrete tone radiation from an axial flow fan are presented here in the form'of tone directivity. These are explained from the established theory relating them. The effect of cut-off is explained. The measured discrete tone power at blade passing frequency and harmonics are pre

MODELLING OF THE NOISE SPECTRA OF AXIAL
MODELLING OF THE NOISE SPECTRA OF AXIAL FLOW FANS IN A FREE FIELD
✍ S.F. Wu; S.G. Su; H.S. Shah πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 459 KB

This paper presents a semi-empirical formula for predicting the noise spectra of axial flow fans in a free field. The basic assumption made in deriving this formula is that sound radiation from an axial flow fan in a free field is primarily due to the fluctuating pressure exerted on the fan blade su