Back to Search Start Over

The Effect of High Temperature on Wall Shear in a Two Dimensional Wall Jet

Authors :
WRIGHT LAB WRIGHT-PATTERSON AFB OH
Narayanan, M. A.
Rivir, Richard B.
WRIGHT LAB WRIGHT-PATTERSON AFB OH
Narayanan, M. A.
Rivir, Richard B.
Source :
DTIC AND NTIS
Publication Year :
1992

Abstract

The effect of turbulence on skin friction was examined In the developing stage of a high Reynolds number wall let. Skin friction was computed from the law of the wall measurements of mean velocity profiles In the sublayer. It was observed that constant 'A' In the law of the wall relation U/U* = A log YU*/upsilon + B was a universal one equal to 5.6 while 'B' was linearly dependent on the turbulence Intensity near the wall. The wall shear was not significantly altered from that of an ordinary flat plate turbulent boundary layer even at high turbulence levels. The decay of the mean velocity In the longitudinal direction was found to be independent of the momentum flux of the jet at the nozzle exit.

Details

Database :
OAIster
Journal :
DTIC AND NTIS
Notes :
text/html, English
Publication Type :
Electronic Resource
Accession number :
edsoai.ocn831990184
Document Type :
Electronic Resource