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Heat Transfer Research

ISSN for PRINT: 1064-2285

Institutional price:	$2485.00
Issues per year:	8

Best Paper Award Selection - Editorial Board Site

2006, Volume37

94 pages

DOI: 10.1615/HeatTransRes.v37.i3

Issue price - $363.00

Investigation of the Frequency Spectra of Pulsations in a Gas Tube Flow under Unsteady Conditions

G. A. Dreitser
Moscow Aviation Institute (Technical University), 4 Volokolamskoye shosse, Moscow, 1125993, Russia

V. M. Kraev
Moscow State Aviation Institute (Technical University), Moscow, Russia

ABSTRACT

Data on the structure of a turbulent gas flow in a round tube under isothermal and nonisothermal conditions of flow were obtained experimentally. The data are used to calculate the frequency spectra of axial and radial velocity fluctuations. An analysis of the effect of nonisothermicity on the mechanisms underlying the incipience and development of turbulent pulsations is carried out.