### 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 language | English (US) |
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Title of host publication | IN |

Subtitle of host publication | STRUCTURE AND MECHANISMS OF TURBULENCE, (PROC. SYMP. ON TURBULENCE, BERLIN, FED. REP. GERMANY, AUG.1-5, 1977) |

Publisher | Springer-Verlag |

Pages | 48-64 |

Number of pages | 17 |

Volume | 1 , H. Fiedler (Ed.), Berlin, Fed. Rep. Germany, Springer-Verlag, 1978 |

ISBN (Print) | 0540087656 |

DOIs | |

State | Published - 1978 |

Externally published | Yes |

### ASJC Scopus subject areas

- Engineering(all)

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## Cite this

*IN: STRUCTURE AND MECHANISMS OF TURBULENCE, (PROC. SYMP. ON TURBULENCE, BERLIN, FED. REP. GERMANY, AUG.1-5, 1977)*(Vol. 1 , H. Fiedler (Ed.), Berlin, Fed. Rep. Germany, Springer-Verlag, 1978, pp. 48-64). Springer-Verlag. https://doi.org/10.1007/3-540-08765-6_5