Abstract
We present results of calculations of the mean intensity of a beam which passes in the beginning of the path through a shock wave which is formed during a supersonic air flow around the turret and propagates further in a homogeneous medium. It is shown that the spatial inhomogeneity of the air refractive index in the region of a shock wave can lead to strong anisotropic distortions of a beam intersecting the wave; the distortions result in focusing and defragmentation of the beam at comparatively short distances from the turret and rapid degradation of the beam in the process of its further propagation.
Similar content being viewed by others
References
E. Frumker and O. Pade, “Generic method for aerooptic evaluations,” Appl. Opt. 43 (16), 3224–3228 (2004).
O. Pade, “Propagation through shear layers,” Proc. SPIE 6364, 63640 (2006).
K. N. Volkov and V. N. Emel’yanov, “Aerooptic effects in a turbulent flow and their simulation,” Tech. Phys. 53 (2), 217–223 (2008).
M. Henriksson, L. Sjöqvist, O. Parmhed, and C. Fureby, “Numerical laser beam propagation using large eddy simnulation of a jet engine flow field,” Opt. Eng. 54 (8), 085101 (2015). doi 10.1117/1.OE.54.8.085101
L. Bo and L. Hong, “Aero-optical characteristics of supersonic flow over blunt wedge with cavity window, J. Shanghai Jiaotong Univ. 16 (6), 742–749 (2011).
L. Xu and Y. Cai, “Influence of altitude on aero-optic imaging deviation,” Appl. Opt. 50 (18), 2949–2957 (2011).
M. Wang, A. Mani, and S. Gordeev, “Physics and computation of aero-optics,” Annu. Rev. Fluid Mech. 44, 299–321 (2012).
Q. Gao, S. H. Yi, Z. F. Jiang, L. He, and Y. X Zhao, “Hierarchical structure of the optical path length of the supersonic turbulent boundary layer,” Opt. Express 20, 16494–16503 (2012).
V. A. Banakh, A. A. Sukharev, and A. V. Falits, “Diffraction of the optical beam on a shock wave in the vicinity of a supersonic aircraft,” Opt. Atmos. Okeana 26 (11), 932–941 (2013).
V. A. Banakh, A. A. Sukharev, and A. V. Falits, “Optical beam distortions induced by a shock wave,” Appl. Opt. 54 (8), 2023–2031 (2015).
V. A. Banakh, A. A. Sukharev, and A. V. Falits, “Manifestation of aero-optical effects in a turbulent atmosphere in supersonic motion of a conical body,” Atmos. Ocean. Opt. 28 (1), 24–33 (2015).
V. E. Zuev, V. A. Banakh, and V. V. Pokasov, Optics of a Turbulent Atmosphere. Modern Problems of Atmospheric Optics (Gidrometeoizdat, Leningrad, 1988), Vol. 5 [in Russian].
V. P. Kandidov, “Monte Carlo method in nonlinear statistical optics,” Phys.-Uspekhi 39 (12), 1243–1272 (1996).
A. S. Gurvich, A. I. Kon, V. L. Mironov, and S. S. Khmelevtsov, Laser Radiation in a Turbulent Atmosphere (Nauka, Moscow, 1976) [in Russian].
D. C. Wilcox, Turbulence modeling for CFD (DCW Industries, Inc., La Canada, California, 2006).
V. A. Banakh, D. A. Marakasov, and A. A. Sukharev, “Reconstruction of the structural characteristic of the refractive index and average air density in a shock wave arising in a supersonic flow past obstacles from optical measurements,” Opt. Spectrosc. 111 (6), 967–972 (2011).
K. Wang and M. Wang, “Aero-optics of subsonic turbulent boundary layers,” J. Fluid Mech. 696, 122–151 (2012).
Q. Gao, S. H. Yi, Z. F. Jiang, L. He, and Xi Wang, “Structure of the refractive index distribution of the supersonic turbulent boundary layer,” Opt. Laser. Eng. 51 (9) 1113–1119 (2013).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © V.A. Banakh, A.A. Sukharev, 2016, published in Optika Atmosfery i Okeana.
Rights and permissions
About this article
Cite this article
Banakh, V.A., Sukharev, A.A. Laser beam distortions caused by a shock wave near the turret of a supersonic aircraft. Atmos Ocean Opt 29, 225–233 (2016). https://doi.org/10.1134/S1024856016030039
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1024856016030039