Phase structure function and AOA fluctuations of plane and spherical waves propagating through oceanic turbulence
Phase structure function and AOA fluctuations of plane and spherical waves propagating through oceanic turbulence
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DOI：
10.1088/2040-8978/17/8/085610
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发表时间：
2015-07
影响因子：
2.1
通讯作者：
Lu Lu-Lu;Zhiqiang Wang;Pengfei Zhang;C. Qiao;Chengyu Fan;Jing-hui Zhang;X. Ji
中科院分区：
文献类型：
--
作者：
Lu Lu-Lu;Zhiqiang Wang;Pengfei Zhang;C. Qiao;Chengyu Fan;Jing-hui Zhang;X. Ji
基于超几何函数的性质，推导了平面波和球面波在海洋湍流中传播的相位结构函数和到达角起伏的解析表达式。通过将它们与使用四个重要参数（即，均方温度的耗散率χ T，？>单位质量流体的动能耗散率ε，？>温度与盐度对折射率谱的贡献之比W，？>和Kolmogorov微尺度）。?> AOA起伏与空间相干半径0？>并进行了研究。
Based on the characteristics of a hypergeometric function, the analytical expressions for the phase structure function and angle-of-arrival (AOA) fluctuations of plane and spherical waves propagating through oceanic turbulence are derived. The results are verified by comparing them with the numerical calculations of the definitions using four important parameters (i.e., the rate of dissipation of mean-squared temperature χ T , ?> the rate of dissipation of kinetic energy per unit mass of fluid ε , ?> the ratio of temperature to salinity contribution to the refractive index spectrum w , ?> and the Kolmogorov microscale ). ?> The relation between AOA fluctuations and the spatial coherence radius 0 ?> is also investigated.