野火锋面湍流的红外诊断和诱导大气湍流的形成

IF 0.9 4区材料科学 Q4 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Russian Journal of Nondestructive Testing Pub Date : 2025-07-20 DOI:10.1134/S1061830925700081

A. V. Lutsenko, E. L. Loboda, D. P. Kasymov, M. V. Agafontsev

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引用次数: 0

摘要

提出了一种自然火场前湍流尺度的红外诊断方法，并与模拟草地和树冠火场燃烧源附近空气湍流尺度进行了比较。对草原火灾火焰的分析表明，湍流尺度比冠状火灾火焰小。在10 m高度观测到火灾引起的大气湍流，并观测到相应的气温脉动频率（草原火灾为0.1 ~ 6 Hz，冠状火灾为0.1 ~ 3 Hz）。折射率和温度波动的结构函数值明显高于背景值，可用于远程火灾探测。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Infrared Diagnostics of Turbulence in the Front of a Wildland Fire and the Formation of Induced Atmospheric Turbulence

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Infrared Diagnostics of Turbulence in the Front of a Wildland Fire and the Formation of Induced Atmospheric Turbulence

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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来源期刊

Russian Journal of Nondestructive Testing 工程技术-材料科学：表征与测试

CiteScore

1.60

自引率

44.40%

发文量

审稿时长

6-12 weeks

期刊介绍： Russian Journal of Nondestructive Testing, a translation of Defectoskopiya, is a publication of the Russian Academy of Sciences. This publication offers current Russian research on the theory and technology of nondestructive testing of materials and components. It describes laboratory and industrial investigations of devices and instrumentation and provides reviews of new equipment developed for series manufacture. Articles cover all physical methods of nondestructive testing, including magnetic and electrical; ultrasonic; X-ray and Y-ray; capillary; liquid (color luminescence), and radio (for materials of low conductivity).