PLANE TURBULENT IMPINGING JET.

E. Gutmark, M. Wolfshtein, Israel J Wygnanski

Research output: Contribution to journalArticle

79 Citations (Scopus)

Abstract

This paper presents an experimental study of the turbulent structure on the center-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 frequences 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. Refs.

Original languageEnglish (US)
Pages (from-to)737-756
Number of pages20
JournalJournal of Fluid Mechanics
Volume88
Issue numberpt 4
StatePublished - Jan 1 1978
Externally publishedYes

Fingerprint

turbulent jets
Stretching
Vortex flow
two dimensional jets
Energy balance
vortices
Anisotropy
Derivatives
energy
dissipation
anisotropy
products

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Condensed Matter Physics

Cite this

Gutmark, E., Wolfshtein, M., & Wygnanski, I. J. (1978). PLANE TURBULENT IMPINGING JET. Journal of Fluid Mechanics, 88(pt 4), 737-756.

PLANE TURBULENT IMPINGING JET. / Gutmark, E.; Wolfshtein, M.; Wygnanski, Israel J.

In: Journal of Fluid Mechanics, Vol. 88, No. pt 4, 01.01.1978, p. 737-756.

Research output: Contribution to journalArticle

Gutmark, E, Wolfshtein, M & Wygnanski, IJ 1978, 'PLANE TURBULENT IMPINGING JET.', Journal of Fluid Mechanics, vol. 88, no. pt 4, pp. 737-756.
Gutmark E, Wolfshtein M, Wygnanski IJ. PLANE TURBULENT IMPINGING JET. Journal of Fluid Mechanics. 1978 Jan 1;88(pt 4):737-756.
Gutmark, E. ; Wolfshtein, M. ; Wygnanski, Israel J. / PLANE TURBULENT IMPINGING JET. In: Journal of Fluid Mechanics. 1978 ; Vol. 88, No. pt 4. pp. 737-756.
@article{5158c554326f41b18f184f646cbeb57c,
title = "PLANE TURBULENT IMPINGING JET.",
abstract = "This paper presents an experimental study of the turbulent structure on the center-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 frequences 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. Refs.",
author = "E. Gutmark and M. Wolfshtein and Wygnanski, {Israel J}",
year = "1978",
month = "1",
day = "1",
language = "English (US)",
volume = "88",
pages = "737--756",
journal = "Journal of Fluid Mechanics",
issn = "0022-1120",
publisher = "Cambridge University Press",
number = "pt 4",

}

TY - JOUR

T1 - PLANE TURBULENT IMPINGING JET.

AU - Gutmark, E.

AU - Wolfshtein, M.

AU - Wygnanski, Israel J

PY - 1978/1/1

Y1 - 1978/1/1

N2 - This paper presents an experimental study of the turbulent structure on the center-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 frequences 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. Refs.

AB - This paper presents an experimental study of the turbulent structure on the center-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 frequences 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. Refs.

UR - http://www.scopus.com/inward/record.url?scp=0018019782&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0018019782&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0018019782

VL - 88

SP - 737

EP - 756

JO - Journal of Fluid Mechanics

JF - Journal of Fluid Mechanics

SN - 0022-1120

IS - pt 4

ER -