Accession Number:

AD0688166

Title:

AN INVESTIGATION OF THE EFFECT OF FLUID INJECTION ON THE SKIN FRICTION COEFFICIENT OF AN INCOMPRESSIBLE TURBULENT BOUNDARY LAYER

Descriptive Note:

Technical rept.

Corporate Author:

MISSISSIPPI STATE UNIV MISSISSIPPI STATE DEPT OF AEROPHYSICS AND AEROSPACE ENGINEERING

Personal Author(s):

Report Date:

1969-03-01

Pagination or Media Count:

39.0

Abstract:

The skin-friction reduction of an incompressible, turbulent boundary layer due to fluid injection was found in a porous pipe in the pipe Reynolds number range of 68,000 to 201,500. A reduction in C sub F of approximately 20 percent was found with fluid injection quantities of .0004. The experimental results from the porous pipe agreed with the directly measured shear results on a flat plate by Roberts and Randall and agreed reasonably well with the results of Mickley and Davis. The experimental results gave a larger reduction in skin friction with fluid injection than predicted by theoretical analyses.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE