ライブラリ登録: Guest
TSFP DL Home アーカイブ 執行委員会

STATISTICAL DESCRIPTION OF TURBULENT AXISYMMETRIC IMPINGING JET WITH EXCITED COHERENT STRUCTURES

Sergey Alekseenko
Kutateladze Institute of Thermophysics SB RAS, Lavrentyev Ave. 1, 630090, Novosibirsk, Russia; Department of Physics, Novosibirsk State University

Arthur V. Bilsky
Institute of Thermophysics, Siberian Branch of RAS, Lavrentyev Ave. 1, Novosibirsk, 630090, Russia

Oksana Heinz
Institute of Thermophysics Siberian Branch of RAS Lavrentyev Ave., 1, Novosibirsk, 630090, Russia

Boris B. Ilyushin
Kutateladze Institute of Thermophysics SB RAS, Lavrentyev ave., 1, 630090, Novosibirsk; and Nuclear Safety Institute of RAS, Moscow, Russia; Novosibirsk State University, Novosibirsk, Russia

Dmitriy M. Markovich
Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences (IT SB RAS), 1, Lavrentyev Ave., Novosibirsk, 630090, Russia; Department of Physics, Novosibirsk State University (NSU), 1, Pirogov Str., Novosibirsk, 630090, Russia; Institute of Power Engineering, Tomsk Polytechnic University (TPU), 30, Lenin Ave., Tomsk, 634050, Russia

Victor N. Vasechkin
Institute of Thermophysics, Siberian Branch of the USSR Academy of Sciences, 630090 Novosibirsk USSR

要約

The statistical characteristics of axisymmetric submerged impinging jet are experimentally determined for conditions of external periodical forcing. The method of conditional sampling is used together with electrodiffusion technique and PIV. The triple decomposition of velocity and skin friction pulsations is applied in order to distinguish the coherent and random parts of turbulent kinetic energy and statistical characteristics. The major contribution of coherent component is ascertained.