Studies of flow separation and stalling on one- and two-element airfoils at low speedsResearch has been conducted on the nature of airfoil behavior at pre- and post-separated angles of attack. Detailed wind tunnel studies have been made of boundary layer and wake fields for the GA(W)-1 airfoil, and the airfoil with a 0.3 chord Fowler flap. Experimental data are compared with theoretical predictions from a multi-element viscous flow computer program. Theoretical predictions are reasonably accurate for unseparated flows, but have serious errors when separation is present. Some recent techniques for modeling post-separated flow behavior are discussed in light of the present experiments.
Document ID
19770054211
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Seetharam, H. C. (Wichita State Univ. Wichita, KS, United States)
Wentz, W. H., Jr. (Wichita State University Wichita, Kan., United States)