The effect of anisotropy of turbulence of a laser-active medium on divergence of radiation

被引：0

作者：

Lavinskaya, EI ^{[1
]}

Nogotov, EF ^{[1
]}

Fomin, NA ^{[1
]}

机构：

[1] AV Lykov Heat & Mass Transfer Inst, Minsk, BELARUS

来源：

DOKLADY AKADEMII NAUK BELARUSI | 1999年 / 43卷 / 01期

关键词：

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We have considered the case of a plane wave incident on to a slab of flowing gas that is slightly anisotropically turbulent. The effect of turbulence is manifested by fluctuations in the index of refraction, which causes probing light refraction. R. m. s. of the 2D fluctuations of light deflection angles is analysed and expressed in. terms of r. m. s. df the 3D fluctuations of the refraction index.-The possibilities of using a new diagnostic technique - speckle-photography - in the studies of 3D turbulent flows are analyzed. It is shown that statistical characteristics of 3D turbulent flow correlate with statistical characteristics of the 2D field of refractive indexes' of light that passed through the flow. The sensitivity range of the speckle-photography proved to be quite enough for recording temperature fluctuations.

引用

页码：45 / 48

页数：4

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