Flow alteration and drag reduction by riblets in a turbulent boundary layer

Detailed measurements with a miniature single-sensor hot-wire probe of the streamwise velocity field within a riblet groove of dimensionless size are presented. The wall shear stress yields approximately 4% drag reduction compared with a smooth surface with the same projected area.

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Bibliographische Detailangaben
Veröffentlicht in:	AIAA journal 1994-01, Vol.32 (1), p.31-38
Hauptverfasser:	Park, Seong-Ryong, Wallace, James M
Format:	Artikel
Sprache:	eng
Schlagworte:	Boundary layer and shear turbulence Exact sciences and technology Fluid dynamics Fundamental areas of phenomenology (including applications) Mechanical engineering Physics Turbulent flows, convection, and heat transfer Velocity
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Beschreibung
Zusammenfassung:	Detailed measurements with a miniature single-sensor hot-wire probe of the streamwise velocity field within a riblet groove of dimensionless size are presented. The wall shear stress yields approximately 4% drag reduction compared with a smooth surface with the same projected area.
ISSN:	0001-1452 1533-385X
DOI:	10.2514/3.11947