Titlebook: Advances in Turbulence 2; Proceedings of the S Hans-Hermann Fernholz,Heinrich E. Fiedler Conference proceedings 1989 Springer-Verlag Berlin

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Transition Processes of Mixing Layerserimposed random fine scale turbulence. However, in a region further downstream, the phase of the passing coherent structures becomes decorrelated and random small eddies occur. In this paper, the physical mechanisms of these transition processes are discussed.

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https://doi.org/10.1007/0-387-28273-4nteresting problem in its own right. Traditional vibrating ribbon induced transition was studied by Nishioka, Iida . Ichikawa [18] where it was found that similar three-dimensional breakdown occurs as in the boundary layer [14], [15]. Two-dimensional TollmienSchlichting waves grow to a finite amplit

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https://doi.org/10.1007/0-387-28273-4aracteristic plots of an integral quantity are educed that represent evolutional patterns associated with, and characteristic for, the burst. These patterns are conjectured to represent discrete stages of transition to turbulence. The inherent symmetry of these patterns provides a possibility for mo

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https://doi.org/10.1007/0-387-28273-4ame scale as the spot have been identified within the spot. The number of structures in the spot increases with streamwise distance, however all structures are convected with the same velocity. This convection velocity depends on the normalized distance from the wall and is almost identical to that

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Why Do We Need to Manage Conflict?, of the time derivative ∂./∂.. This distribution is asymmetric in the sense that events of large positive ∂./∂. occur more often than those of large negative ∂./∂.. The events with large positive ∂./∂. are regarded to be important for the transfer of mean flow energy into turbulence.

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Twelve Steps for Reducing Conflict,l number Pr. is about 0.7. Some measurements suggest that this break-down of the Reynolds analogy (which assumes Pr. = 1) may be explained by the role of large-scale structures in the turbulent transport. In the mixing layer |2| or in the self-preserving region of a plane jet |3|, these structures a

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