Accession Number : ADA194785

Title :   Experimental Determination of Drag Modifications Due to Elastic Compliant Surfaces Using Quantitative Visual Techniques.

Descriptive Note : Final technical rept. 1982-1985,

Corporate Author : MICHIGAN STATE UNIV EAST LANSING TURBULENCE STRUCTURE LAB

Personal Author(s) : Falco, R E ; Chu, C C

PDF Url : ADA194785

Report Date : 27 Apr 1988

Pagination or Media Count : 36

Abstract : Direct measurements of the wall shear stress have been made at a point on three thicknesses of an elastic compliant surface. Approximately 8% Cf reduction was measured on each surface. Observations of the surfaces' motion showed that they responded to the microscale turbulent eddies. At higher forcing the onset of various surface wave phenomena were observed. Keywords: Compliant surfaces, Drag reduction, Skin friction, Boundary layers.

Descriptors :   *BOUNDARY LAYER, *DRAG REDUCTION, *SKIN FRICTION, COMPLIANT WALLS, DRAG, EDDIES(FLUID MECHANICS), ELASTIC PROPERTIES, MEASUREMENT, MODIFICATION, MOTION, OPTICAL IMAGES, SHEAR STRESSES, SURFACE PROPERTIES, SURFACE WAVES, SURFACES, THICKNESS, TURBULENCE, WALLS

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE