Exploratory investigation of the effects of vortex bursting on the high angle-of-attack lateral-directional stability characteristics of highly-swept wingsA recent low-speed wind-tunnel investigation of highly-swept wings has shown that vortex breakdown at high angles of attack can cause large destabilizing effects on static lateral-directional stability characteristics, and that the destabilizing effects of vortex breakdown can be greatly aggravated by model support strut interference effects. The present paper discusses these effects based on the results of static force tests of several highly-swept wing configurations for different wind-tunnel strut setup arrangements. Also included in the paper are photographs obtained during tuft-, smoke-, and helium-bubble flow visualization studies to indicate wing flow behavior patterns
Document ID
19800042790
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Johnson, J. L., Jr. (NASA Langley Research Center Hampton, VA, United States)
Grafton, S. B. (NASA Langley Research Center Hampton, VA, United States)
Yip, L. P. (NASA Langley Research Center Hampton, Va., United States)