Effect of flow acceleration and initial turbulence level on the variation of velocity pulsations

Abstract

The effect of various levels of initial turbulence on the degeneration of velocity pulsations in converging tubes with various ratios of contraction has been studied experimentally. The results of the experiments give evidence of a strong influence of turbulence degree upon the longitudinal pulsations of velocity and of its weaker influence upon the transverse ones. The experimental data demonstrate, that the theory of rapid distortion is inapplicable to this case unless it allows for energy dissipation, the integral scale, and the extent of anisotropy.

Original language	English
Pages (from-to)	42-49
Number of pages	8
Journal	Izvestiya Akademii Nauk. Mekhanika Zhidkosti I Gaza
Issue number	5
Publication status	Published - 1 Sep 1993
Externally published	Yes

ASJC Scopus subject areas

Mechanical Engineering

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title = "Effect of flow acceleration and initial turbulence level on the variation of velocity pulsations",

abstract = "The effect of various levels of initial turbulence on the degeneration of velocity pulsations in converging tubes with various ratios of contraction has been studied experimentally. The results of the experiments give evidence of a strong influence of turbulence degree upon the longitudinal pulsations of velocity and of its weaker influence upon the transverse ones. The experimental data demonstrate, that the theory of rapid distortion is inapplicable to this case unless it allows for energy dissipation, the integral scale, and the extent of anisotropy.",

author = "Lebedev, {V. P.} and Lemanov, {V. V.} and Misyura, {S. Ya} and Terekhov, {V. I.}",

year = "1993",

month = sep,

day = "1",

language = "English",

pages = "42--49",

journal = "Izvestiya Akademii Nauk. Mekhanika Zhidkosti I Gaza",

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AU - Lebedev, V. P.

AU - Lemanov, V. V.

AU - Misyura, S. Ya

AU - Terekhov, V. I.

PY - 1993/9/1

Y1 - 1993/9/1

N2 - The effect of various levels of initial turbulence on the degeneration of velocity pulsations in converging tubes with various ratios of contraction has been studied experimentally. The results of the experiments give evidence of a strong influence of turbulence degree upon the longitudinal pulsations of velocity and of its weaker influence upon the transverse ones. The experimental data demonstrate, that the theory of rapid distortion is inapplicable to this case unless it allows for energy dissipation, the integral scale, and the extent of anisotropy.

AB - The effect of various levels of initial turbulence on the degeneration of velocity pulsations in converging tubes with various ratios of contraction has been studied experimentally. The results of the experiments give evidence of a strong influence of turbulence degree upon the longitudinal pulsations of velocity and of its weaker influence upon the transverse ones. The experimental data demonstrate, that the theory of rapid distortion is inapplicable to this case unless it allows for energy dissipation, the integral scale, and the extent of anisotropy.

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JO - Izvestiya Akademii Nauk. Mekhanika Zhidkosti I Gaza

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SN - 0568-5281

IS - 5

ER -

Effect of flow acceleration and initial turbulence level on the variation of velocity pulsations

Abstract

ASJC Scopus subject areas

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