Accession Number:

AD0434841

Title:

SUMMARY OF LAMINAR LNVCONTROL TECHNIQUES NR AIRCRAFT,

Descriptive Note:

Corporate Author:

AERONAUTICAL SYSTEMS DIV WRIGHT-PATTERSON AFB OHIO

Report Date:

1963-09-01

Pagination or Media Count:

41.0

Abstract:

The promising results of the analytical investigation, wind tunnel and free flight experiments, and application studies of laminar flow control by means of suction are reviewed. From the first aerodynamic investigations that proved the existence of a viscous layer of fluid over a wing surface, it was shown that the penalty in terms of skin friction drag and resulting power requirements for cruise was a high percentage of the total drag of an aircraft. It became the ambition of all investigators to attempt efficient means of reducing the magnitude of this drag by at least preventing turbulent flow conditions from existing on the wing surfaces. With the advent of the jet engine it became possible to efficiently provide a means of suction to control the boundary layer on the surfaces that would offer practically no weight penalty. Further research showed the feasibility of using fine slots versus a distributed suction technique. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE