On the effect of initial conditions on the two dimensional turbulent mixing layer.

D. Oster, Israel J Wygnanski, B. Dziomba, H. Fiedler

Research output: Chapter in Book/Report/Conference proceedingChapter

33 Citations (Scopus)

Abstract

It was observed that a very small sinusoidal disturbance, which is placed at the initiation of mixing of two parallel streams has a mayor effect on the spreading rate of the mixing layer. The large eddy structure within the layer is very regular in spite of the fact that the flow is fully turbulent and the Reynoldsnumber is of the order of 10SUB6. The spreading rate of the mixing layer is thus directly related to the growth of the large coherent vortices. The distance, in the direction of streaming, over which the spread of the mixing layer can be controlled, depends on the frequency of forcing. Doubling the initial rate of spread of the mixing layer is not only feasible but can be easily attained. (A)

Original languageEnglish (US)
Title of host publicationIN: STRUCTURE AND MECHANISMS OF TURBULENCE, (PROC. SYMP. ON TURBULENCE, BERLIN, FED. REP. GERMANY, AUG.1-5, 1977)
PublisherSpringer-Verlag
Volume1 , H. Fiedler
ISBN (Print)0 540 08765 6
StatePublished - 1978
Externally publishedYes

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Vortex flow

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Oster, D., Wygnanski, I. J., Dziomba, B., & Fiedler, H. (1978). On the effect of initial conditions on the two dimensional turbulent mixing layer. In IN: STRUCTURE AND MECHANISMS OF TURBULENCE, (PROC. SYMP. ON TURBULENCE, BERLIN, FED. REP. GERMANY, AUG.1-5, 1977) (Vol. 1 , H. Fiedler). Springer-Verlag.

On the effect of initial conditions on the two dimensional turbulent mixing layer. / Oster, D.; Wygnanski, Israel J; Dziomba, B.; Fiedler, H.

IN: STRUCTURE AND MECHANISMS OF TURBULENCE, (PROC. SYMP. ON TURBULENCE, BERLIN, FED. REP. GERMANY, AUG.1-5, 1977). Vol. 1 , H. Fiedler Springer-Verlag, 1978.

Research output: Chapter in Book/Report/Conference proceedingChapter

Oster, D, Wygnanski, IJ, Dziomba, B & Fiedler, H 1978, On the effect of initial conditions on the two dimensional turbulent mixing layer. in IN: STRUCTURE AND MECHANISMS OF TURBULENCE, (PROC. SYMP. ON TURBULENCE, BERLIN, FED. REP. GERMANY, AUG.1-5, 1977). vol. 1 , H. Fiedler, Springer-Verlag.
Oster D, Wygnanski IJ, Dziomba B, Fiedler H. On the effect of initial conditions on the two dimensional turbulent mixing layer. In IN: STRUCTURE AND MECHANISMS OF TURBULENCE, (PROC. SYMP. ON TURBULENCE, BERLIN, FED. REP. GERMANY, AUG.1-5, 1977). Vol. 1 , H. Fiedler. Springer-Verlag. 1978
Oster, D. ; Wygnanski, Israel J ; Dziomba, B. ; Fiedler, H. / On the effect of initial conditions on the two dimensional turbulent mixing layer. IN: STRUCTURE AND MECHANISMS OF TURBULENCE, (PROC. SYMP. ON TURBULENCE, BERLIN, FED. REP. GERMANY, AUG.1-5, 1977). Vol. 1 , H. Fiedler Springer-Verlag, 1978.
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