The plane turbulent impinging jet

E. Gutmark, M. Wolfshtein, I. Wygnanski

Research output: Contribution to journalArticlepeer-review

92 Scopus citations


This paper presents an experimental study of the turbulent structure on the centre-line of a two-dimensional impinging jet. The mean velocity, turbulent stresses, triple velocity products and temporal derivatives were measured and the energy balances for the three fluctuating components were calculated. The results indicate a selective stretching of vortices in the direction in which the streamlines spread near the wall, causing anisotropy in this region. The distribution of energy among various frequencies was found from spectral measurements. These measurements revealed the existence of a neutral frequency above which the energy was attenuated by viscous dissipation and below which it was augmented by a vortex-stretching mechanism.

Original languageEnglish (US)
Pages (from-to)737-756
Number of pages20
JournalJournal of Fluid Mechanics
Issue number4
StatePublished - Oct 1978

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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