Anzeige
Erschienen in:
1993 | OriginalPaper | Buchkapitel
A Note on Local Isotropy in High-Reynolds-Number Turbulence
verfasst von : Dr. Srinivas V. Veeravalli, Dr. Seyed G. Saddoughi, Dr. Alexander A. Praskovsky, Prof. Peter Bradshaw
Erschienen in: New Approaches and Concepts in Turbulence
Verlag: Birkhäuser Basel
Enthalten in: Professional Book Archive
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Detailed measurements of the velocity field were made in the wall boundary layer of the 80’ by 120’ facility at NASA Ames. The Reynolds Number Rλ, based on the Taylor microscale λ at the measurement location, was approximately 1450, one the largest attained in laboratory flows. The data indicate that to within measurement accuracy, the w-spectrum follows, but the v-spectrum deviates from, the isotropic relation in the inertial subrange. No definite statement can be made regarding local isotropy for the dissipating scales because the spectral measurements were contaminated by high-frequency electrical noise, but it appears that the inertial-subrange anisotropy persist in the dissipation region.