声波扰动激发湍流效应的研究

声波扰动能影响大气折射率结构常数,激发大气湍流效应.文章结合声波方程和Kolmogorov湍流模型的"2/3定律",分析了声波激发功率和大气折射率结构常数之间的数值关系,分析了波长、温度和压强对大气折射率指数的影响.结果表明:压强的变化对大气折射率指数的影响最大,其次是温度,波长的影响最小.在标准大气压下,光波长为0.65μm,声波扰动功率小于30 kW时,声波在距离声源1 m左右产生的大气折射率结构常数量级在10^-17上下波动,属于大气弱湍流效应,表明声波扰动能产生湍流,激发湍流效应.

Turbulence effect induced by acoustic wave fluctuation

Acoustic wave fluctuation technology can affect the atmospheric refractive index structure constant, and cause atmospheric turbulence effect. In this paper, based on the acoustic wave equation and the "2/3 law" of the Kolmogorov turbulence model, the numerical relationship between the acoustic power and the atmospheric refractive index structure constant is derived. The effect of wavelength, temperature, and pressure on the atmosphere refractive index are analyzed. The results show that the change of pressure has the greatest influence on the atmosphere refractive index, followed by temperature, and finally wavelength. Under the standard atmospheric pressure, when the light wavelength is 0.65 μm, and the acoustic wave fluctuation power is less than 30 kW, the atmospheric refractive index structure constant of about 1 m from the sound source fluctuates up and down in the range of 10-17, which belongs to the weak atmospheric turbulence effect. It is verified that the acoustic wave fluctuation can generate turbulence and cause turbulence effects.