强激光与粒子束, 2006, 18 (9): 1423, 网络出版: 2007-01-11   

非Kolmogorov大气湍流温度谱标度指数的测量与分析

Measurement and analysis of temperature power spectrum scaling exponent in non-Kolmogorov turbulent atmosphere
作者单位
中国科学院,安徽光学精密机械研究所,大气光学研究中心,合肥,230031
摘要
阐述了非Kolmogorov湍流谱理论以及湍流谱标度指数的测量与计算方法.在近地面多个地点对大气湍流温度起伏进行了多次的实验观测,结果表明:实际大气湍流温度谱标度指数多数不等于-5/3,并且通常在-2到-1之间变化.分析了湍流温度谱标度指数与湍流发展程度的相关性,利用小波分析方法展现了不同湍流强度下湍流温度脉动能量在各尺度之间的分配状态,发现湍流温度谱标度指数的绝对值在一定程度上随湍流强度的增加而增大.
Abstract
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梅海平, 吴晓庆, 饶瑞中. 非Kolmogorov大气湍流温度谱标度指数的测量与分析[J]. 强激光与粒子束, 2006, 18(9): 1423. 梅海平, 吴晓庆, 饶瑞中. Measurement and analysis of temperature power spectrum scaling exponent in non-Kolmogorov turbulent atmosphere[J]. High Power Laser and Particle Beams, 2006, 18(9): 1423.

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