Zobrazeno 1 - 10
of 13
pro vyhledávání: '"L. N. Pyatnitskii"'
Autor:
L. N. Pyatnitskii
Publikováno v:
Combustion, Explosion, and Shock Waves. 55:633-643
An intense effect of acoustic waves on the structure and shape of the burner flame was discovered by Rayleigh. The present paper deals with acoustic waves in the case of flame propagation in a tube. The flame emits acoustic waves generating the flow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1991156f5489004353d55590e652d51
https://doi.org/10.1134/s0010508219060017
https://doi.org/10.1134/s0010508219060017
Autor:
L. N. Pyatnitskii
Publikováno v:
Journal of Experimental and Theoretical Physics. 127:778-785
The Riemann compression wave describes a 2D flow behind an infinite wave front, but is used for describing its propagation in channels. The effect of walls on the process of its propagation is disregarded in this case. However, friction against the w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a93eb915c51d9de1aad0f7b59b57f8da
https://doi.org/10.1134/s1063776118100205
https://doi.org/10.1134/s1063776118100205
Publikováno v:
Quantum Electronics. 31:448-452
A technique of focusing the heating radiation was investigated, which makes it possible to produce an extended (under laboratory conditions, up to 1 m and over) plasma column and enables an easy output of VUV radiation. A plane solid-state target in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c3ab9f5a5dfb756b79bdac7a2ad368e
https://doi.org/10.1070/qe2001v031n05abeh001976
https://doi.org/10.1070/qe2001v031n05abeh001976
Publikováno v:
Journal of Russian Laser Research. 20:218-225
The dynamics of tubular plasma channels obtained in the course of discharge in high-order Bessel optical beams is studied. An estimate of the lifetime of such a tubular configuration is derived.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47c64e7da2ea467782cf077920f61040
https://doi.org/10.1007/bf02508541
https://doi.org/10.1007/bf02508541
Autor:
L. N. Pyatnitskii, S V Gorlov, Galina V Shpatakovskaya, A D Tal'virskii, S S Bychkov, L Ya Margolin
Publikováno v:
Quantum Electronics. 29:229-236
The plasma formed by the breakdown of gases (argon was used in the experiments, whereas argon and helium were considered in the calculations) at atmospheric pressure in light beams was studied experimentally and modelled numerically. The field amplit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f38c9fce13eb9dd56dde78bb2606814f
https://doi.org/10.1070/qe1999v029n03abeh001458
https://doi.org/10.1070/qe1999v029n03abeh001458
Publikováno v:
Quantum Electronics. 28:910-916
Numerical simulation is used to investigate the dynamics of formation of a helium plasma in Bessel beams, shaped by an axicon and a phase converter from a laser radiation pulse with Gaussian temporal and radial intensity profiles. The beam intensitie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba2a7987bae68fd301283a7f2e99caf5
https://doi.org/10.1070/qe1998v028n10abeh001354
https://doi.org/10.1070/qe1998v028n10abeh001354
Autor:
L. N. Pyatnitskii
Publikováno v:
Journal of Experimental and Theoretical Physics. 86:107-114
A concept of turbulence is presented that is based on the results of an investigation of the structure of a gas flow in a tube with a square cross section in front of a nonsteady-state moving flame front. It is shown that a region of elevated pressur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fef6825bfad72e342e1e49f5dd162906
https://doi.org/10.1134/1.558474
https://doi.org/10.1134/1.558474
Autor:
S S Bychkov, L. N. Pyatnitskii, L Ya Margolin, Victor V. Kotlyar, P. G. Serafimovich, Nikolay Andreev
Publikováno v:
Quantum Electronics. 26:126-130
An investigation was made of the possibility of conversion of high-power laser beams into hollow Bessel beams with the first maximum in the radial field distribution in the form of a ring and a slight variation of the field in the direction of propag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3e5c47a50a04a25984f6028e2e29be7
https://doi.org/10.1070/qe1996v026n02abeh000607
https://doi.org/10.1070/qe1996v026n02abeh000607
Publikováno v:
Quantum Electronics. 29:243-245
The time scans of the intrinsic and scattered heating radiations of plasma foci, arising in the spark channel of the optical gas breakdown in a Bessel beam, were investigated. The experiments were carried out in argon at atmospheric pressure by using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a18952acf918090ac1bae970d863f4f4
https://doi.org/10.1070/qe1999v029n03abeh001460
https://doi.org/10.1070/qe1999v029n03abeh001460
Publikováno v:
Physical review. E, Statistical, nonlinear, and soft matter physics. 73(3 Pt 2)
Plasma waveguides generated by focusing a moderate intensity laser into neutral gas with an axicon lens can be unstable to the generation of axial modulations in the channel parameters. A model is proposed in which the modulations are due to the nonl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ee9e3d378f6e72a0a235c8b6856957b
https://pubmed.ncbi.nlm.nih.gov/16605665
https://pubmed.ncbi.nlm.nih.gov/16605665