Coherent motions in the turbulent boundary layerThe role of coherent structures in the production and dissipation of turbulence in a boundary layer is characterized, summarizing the results of recent investigations. Coherent motion is defined as a three-dimensional region of flow where at least one fundamental variable exhibits significant correlation with itself or with another variable over a space or time range significantly larger than the smallest local scales of the flow. Sections are then devoted to flow-visualization experiments, statistical analyses, numerical simulation techniques, the history of coherent-structure studies, vortices and vortical structures, conceptual models, and predictive models. Diagrams and graphs are provided.
Document ID
19910039514
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Robinson, Stephen K. (NASA Langley Research Center Hampton, VA, United States)