Accession Number:

ADA231946

Title:

The Transient Development of Vortices Over a Delta Wing

Descriptive Note:

Final rept. 1 Mar 1989-30 Sep 1990,

Corporate Author:

VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF ENGINEERING SCIENCE AND MECHANICS

Personal Author(s):

Report Date:

1990-12-23

Pagination or Media Count:

9.0

Abstract:

The most interesting finding was that for large angles of attack, a delta wing actually sheds vortices alternately, just like bluff bodies do. Also, at high sweep angles, vortex shedding is suddenly initiated at an angle of attack of 37 degrees. In addition, it was found, it was found that a seven-hole probe as small in diameter as 2 of the diameter of the vortex can actually precipitate breakdown, but with little effect on the static pressure on the wing suction surface.

Subject Categories:

  • Aerodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE