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首页> 外文期刊>International Journal of Thermal Sciences >Evaluation of smoke dispersion from forest fire plumes using lidar experiments and modelling
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Evaluation of smoke dispersion from forest fire plumes using lidar experiments and modelling

机译：利用激光雷达实验和模型评估森林火羽中烟雾的扩散

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摘要

The dispersion of forest fire smoke was studied using direct-detection lidar measurements and a Reynolds-averaged Navier-Stokes fluid dynamics model. Comparison between experimental and theoretical results showed that the model adequately describes the influence of the main factors affecting the dispersion of a hot smoke plume in the presence of wind, taking into consideration turbulent mixing, the influence of wind, and the action of buoyancy, and proved that lidar measurements are an appropriate tool for the semiqualitative analysis of forest fire smoke plume evolution and prediction of lidar sensitivity and range for reliable smoke detection. It was also demonstrated that analysis of lidar signals using Klett's inversion method allows the internal three-dimensional structure of the smoke plumes to be semiquantitatively determined and the absolute value of smoke-particle concentration to be estimated.
机译：使用直接探测激光雷达测量和雷诺平均Navier-Stokes流体动力学模型研究了森林火灾烟雾的扩散。实验和理论结果的比较表明，该模型充分考虑了湍流混合，风的影响以及浮力的作用，充分描述了在有风的情况下影响热烟羽散开的主要因素的影响，以及事实证明，激光雷达测量是用于森林火灾烟羽演变的半定性分析以及预测激光雷达灵敏度和范围以进行可靠烟雾检测的合适工具。还证明了使用克列特反演方法对激光雷达信号进行分析，可以半定量确定烟雾羽流的内部三维结构，并可以估计烟雾颗粒浓度的绝对值。

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