Infrared Diagnostics of Turbulence in the Front of Wildland Fire and the Formation of Induced Atmospheric Turbulence
- Authors: Lutsenko A.V.1, Loboda E.L.1, Kasymov D.P.1, Agafontsev M.V.1
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Affiliations:
- Tomsk State National Research University
- Issue: No 4 (2025)
- Pages: 42-51
- Section: Thermal methods
- URL: https://archivog.com/0130-3082/article/view/681196
- DOI: https://doi.org/10.31857/S0130308225040049
- ID: 681196
Cite item
Abstract
An infrared diagnostic of the scale of turbulence in the front of a natural fire is presented, as well as a comparison with the scale of turbulence in the air near the combustion source for a model grassland and crown fire. An analysis of the flame of a grassland fire reveals smaller turbulence scales than the flame of a crown fire. A fire-induced atmospheric turbulence at a height of 10 m is observed with the corresponding frequency of air temperature pulsation (0.1-6 Hz for a steppe fire and 0.1-3 Hz for a crown fire). The values of the structural functions of refractive index and temperature fluctuations are significantly higher than the background values and can be used for remote fire detection.
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About the authors
A. V. Lutsenko
Tomsk State National Research University
Author for correspondence.
Email: anastas_mex_mat434@mail.ru
Russian Federation, 36, Lenin Ave., Tomsk, 634050
E. L. Loboda
Tomsk State National Research University
Email: loboda@mail.tsu.ru
Russian Federation, 36, Lenin Ave., Tomsk, 634050
D. P. Kasymov
Tomsk State National Research University
Email: denkasymov@gmail.com
Russian Federation, 36, Lenin Ave., Tomsk, 634050
M. V. Agafontsev
Tomsk State National Research University
Email: kim75mva@gmail.com
Russian Federation, 36, Lenin Ave., Tomsk, 634050
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