Baykal Yahya
Appl Opt. 2016 Feb 20;55(6):1228-31. doi: 10.1364/AO.55.001228.
The parameters composing oceanic turbulence are the wavelength, link length, rate of dissipation of kinetic energy per unit mass of fluid, rate of dissipation of mean-squared temperature, Kolmogorov microscale, and the ratio of temperature to salinity contributions to the refractive index spectrum. The required physical entities such as the average intensity and the scintillation index in the oceanic medium are formulated by using the power spectrum of oceanic turbulence, which is described by oceanic turbulence parameters. On the other hand, there exists a rich archive of formulations and results for the above-mentioned physical entities in atmospheric turbulence, where the parameters describing the turbulence are the wavelength, the link length, and the structure constant. In this paper, by equating the spherical wave scintillation index solutions in the oceanic and atmospheric turbulences, we have expressed the oceanic turbulence parameters by an equivalent structure constant used in turbulent atmosphere. Such equivalent structure constant will help ease reaching solutions of similar entities in an oceanic turbulent medium by employing the corresponding existing solutions, which are valid in an atmospheric turbulent medium.
构成海洋湍流的参数有波长、关联长度、单位质量流体动能的耗散率、均方温度的耗散率、科尔莫戈罗夫微尺度以及温度与盐度对折射率谱贡献的比值。海洋介质中所需的物理量,如平均强度和闪烁指数,是通过使用海洋湍流的功率谱来确定的,而海洋湍流的功率谱由海洋湍流参数描述。另一方面,大气湍流中存在大量关于上述物理量的公式和结果,其中描述湍流的参数是波长、关联长度和结构常数。在本文中,通过使海洋湍流和大气湍流中的球面波闪烁指数解相等,我们用湍流大气中使用的等效结构常数来表示海洋湍流参数。这种等效结构常数将有助于通过采用在大气湍流介质中有效的相应现有解来简化求解海洋湍流介质中类似物理量的过程。