Accession Number:

AD0668112

Title:

INTERFERENCE MEASUREMENTS MASS TRANSFER IN A TURBULENT BOUNDARY LAYER OF A PERMEABLE SURFACE,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1967-07-28

Pagination or Media Count:

14.0

Abstract:

The object of the work was the interferometric measurement of the concentration field of an admixture carbon dioxide gas blown into a turbulent boundary layer through a permeable surface under isothermal conditions. The experimental apparatus consisted of an open type aerodynamic tube with a closed working column 0.8 meters long and with a cross section 190 x 360 mm. The porous plate being investigated was placed in the lower wall. The flow velocity through the plate was varied smoothly up to 40 meterssec. The porous plate was made of stainless steel and had dimensions of 0.28 x 0.35 x 0.005 meters. Photography of the radiation process was done with a Zenith-S camera directly on the apparatus. A formula is derived for the direct calculation of the profiles of the relative carbon dioxide concentrations in the boundary layer with blowing of carbon dioxide gas. Author

Subject Categories:

  • Aerodynamics
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE