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Erschienen in:
1993 | OriginalPaper | Buchkapitel
Direct Numerical Simulations and Hot Wire Experiments : A Possible Way Ahead?
verfasst von : Professor Robert A. Antonia
Erschienen in: New Approaches and Concepts in Turbulence
Verlag: Birkhäuser Basel
Enthalten in: Professional Book Archive
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Direct numerical simulations have contributed significantly to the study of the physics of turbulence and to turbulence modelling, albeit at low Reynolds numbers. Hot wire experiments should continue to play a useful part in providing data at higher Reynolds numbers but it is important that their limitations are realised. To this end, hot wire measurements in a fully developed turbulent duct flow have been compared with other types of measurements as well as direct numerical simulations for the same flow and comparable Reynolds numbers. Preliminary hot wire measurements of spatial velocity derivatives in a turbulent channel flow show encouraging agreement with the simulations.