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Heat Transfer Research
Fator do impacto: 0.404 FI de cinco anos: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v37.i3.80
pages 271-278

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

Guenrikh A. Dreitser
Department of Aviation-Space Thermal Techniques, Moscow Aviation Institute, Volokolamskoe shosse, 4, Moscow, 125993, Russia
V. M. Kraev
Moscow State Aviation Institute (Technical University), Moscow, Russia

RESUMO

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.


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