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Non-Kolmogorov Turbulence: Does it matter?
OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP), 2021We investigate the impact of non-Kolmogorov turbulence on a propagating beam by examining the resulting Rytov variance, Fried parameter, isoplanatic angle and beam radius with particular consideration of the generalized structure function parameter.
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Zernike expansions for non-Kolmogorov turbulence
Journal of the Optical Society of America A, 1996We investigate the expression of non-Kolmogorov turbulence in terms of Zernike polynomials. Increasing the power-law exponent of the three-dimensional phase power spectrum from 2 to 4 results in a higher proportion of wave-front energy being contained in the tilt components.
Boreman, Glenn D., Dainty, Christopher
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Turbulence distance for laser beams propagating through non-Kolmogorov turbulence
Journal of the Optical Society of America A, 2013Based on the second-order moments and the non-Kolmogorov turbulence spectrum, the general analytical expression for the turbulence distance of laser beams propagating through non-Kolmogorov turbulence is derived, which depends on the non-Kolmogorov turbulence parameters including the generalized exponent parameter α, inner scale l(0), and outer scale L(
Yongping, Huang, Bin, Zhang
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Imaging and Applied Optics 2017 (3D, AIO, COSI, IS, MATH, pcAOP), 2017
Occasionally, non-Kolmogorov turbulence plays an important role for optical propagation in the turbulent atmosphere. Here, we discuss two major causes of non-Kolmogorov turbulence: Batchelor scaling in the viscous-convective range, and anisotropy.
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Occasionally, non-Kolmogorov turbulence plays an important role for optical propagation in the turbulent atmosphere. Here, we discuss two major causes of non-Kolmogorov turbulence: Batchelor scaling in the viscous-convective range, and anisotropy.
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Multicomponent turbulence, the spherical limit, and non-Kolmogorov spectra
Physical Review E, 1995A set of models for homogeneous, isotropic turbulence is considered in which the Navier-Stokes equations for incompressible fluid flow are generalized to a set of N coupled equations in N velocity fields. It is argued that in order to be useful these models must embody a new group of symmetries, and a general formalism is laid out for their ...
, Mou, , Weichman
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Phase compensation in non-Kolmogorov atmospheric turbulence
Optik, 2014Abstract Zernike polynomial decompositions are used for investigating phase distortion induced by atmospheric turbulence in optical systems. Closed-form expression of the Zernike-coefficient variances is derived. The finite size of the receiver aperture is analyzed using the filter function which is also particularly effective in the theoretical ...
Hua Tang, Pengzhan Guo
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Optical propagation in non-Kolmogorov atmospheric turbulence
SPIE Proceedings, 1995Several observations of atmospheric turbulence statistics have been reported which do not obey Kolmogorov's power spectral density model. These observations have prompted the study of optical propagation through turbulence described by non-classical power spectra.
Bruce E. Stribling +2 more
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Non-Kolmogorov’s and Kolmogorov’s Solitonic Hydrodynamical Turbulence
Imaging and Applied Optics 2014, 2014The experimental spectrums for the non-Kolmogorov’s and Kolmogorov’s turbulence are presenting as a sums of spectrums of several coherent structures. Therefore the coherent structure (soliton solution of the hydrodynamic equations) is the basic structural element of turbulence.
V.V. Nosov +4 more
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Imaging and communications through non-Kolmogorov turbulence
SPIE Proceedings, 2009At present, system design usually assumes the Kolmogorov model of refractive index fluctuation spectra in the atmosphere. However, experimental data indicates that in the atmospheric boundary layer and at higher altitudes the turbulence can be different from Kolmogorov's type.
Norman S. Kopeika +2 more
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Non-Kolmogorov dissipation in a turbulent planar jet
Physical Review Fluids, 2018Adopting Lie symmetry group theory both Kolmogorov and non-Kolmogorov scaling and dissipation laws are explored theoretically for a turbulent planar jet. We find that the jet entrainment coefficient varies with streamwise distance when non-Kolmogorov scaling laws hold.
G. C. Layek, null Sunita
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