Investigations of fluctuation frequency spectrum for gas flow in a tube

2004, vol. 11, no. 1, pp. 27-33

Propulsion and Power Plants

Аuthors

Dreytser G. A., Kraev V. M.^*

RaiffaizenBank, 15А, Leninskii prospect, Moscow, 119071, Russia

*e-mail: kraevvm@mail.ru

Abstract

Experimental data are obtained regarding turbulent flow patterns in a tube with a circular cross-section in cases of isothermic and non-isothermic flow regimes. Frequency spectrums are computed for axial and radial velocity fluctuations based on these data. An analysis is carried out for influence of non- isothermic regimes on mechanisms of generation and evolution for turbulent fluctuatins.

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