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Low-frequency diffusion flame oscillations

โœ Scribed by A.J. Grant; J.M. Jones

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
572 KB
Volume
25
Category
Article
ISSN
0010-2180

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โœฆ Synopsis

The low-frequency oscillation that is characteristic of small-scale diffusion flames is also shown to dominate the so-called turbulent flamebrush even at flowrates high enough to lift the flame from the burner. For free diffusion flames, the frequency of oscillation is always of the order of 10 Hz and is not affected by either the dimensions of the burner or the type, or rate of flow of the fuel. Linear stability theory, in which the oscillations are assumed to be purely convective in form, cannot explain the observed invariance of frequency.

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