Effect of flow acceleration and initial turbulence level on velocity fluctuations

V. P. Lebedev, V. V. Lemanov, S. Ya Misyura, V. I. Terekhov

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


The effect of various levels of initial turbulence on the decay of the velocity fluctuations in convergent channels with different contraction ratios has been experimentally investigated. The results of the experiments indicate that the level of turbulence has a strong influence on the longitudinal velocity fluctuations and a weaker effect on the transverse fluctuations. The experimental data demonstrate the inapplicability of the rapid distortion theory and the need for that theory to take into account the energy dissipation, the integral scale and the degree of anisotropy.

Original languageEnglish
Pages (from-to)624-629
Number of pages6
JournalFluid Dynamics
Issue number5
Publication statusPublished - 1 Sep 1993
Externally publishedYes

ASJC Scopus subject areas

  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes

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