COHERENT STRUCTURES IN A TURBULENT MIXING LAYER: A COMPARISON BETWEEN DIRECT NUMERICAL SIMULATIONS AND EXPERIMENTS.

Ralph W. Metcalfe, Fazle Hussain, Suresh Menon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

An education scheme has been developed in an attempt to determine the characteristics of large-scale vortical structures in a turbulent mixing layer. This analysis scheme has been applied to a set of experimental data taken in a new, larger mixing layer facility designed to minimize boundary and resonance effects. A similar scheme has been developed to apply to the results of a direct numerical simulation of a temporally growing mixing layer. A comparison of the two approaches shows important similarities in the coherent structures. The numerical simulations indicate that low levels of coherent forcing can dramatically change the evolution of the mixing layer. In the absence of such forcing, the numerical simulations and experiments show a lack of regularity in the transverse position, spacing, amplitude, shape and spanwise coherence of the large-scale vortical structures.

Original languageEnglish
Title of host publicationUnknown Host Publication Title
StatePublished - Dec 1 1985

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'COHERENT STRUCTURES IN A TURBULENT MIXING LAYER: A COMPARISON BETWEEN DIRECT NUMERICAL SIMULATIONS AND EXPERIMENTS.'. Together they form a unique fingerprint.

Cite this