Effects of Mach Number, Leading Edge Bluntness and Sweep on Boundary-layer Transition on a Flat Plate
Title | Effects of Mach Number, Leading Edge Bluntness and Sweep on Boundary-layer Transition on a Flat Plate PDF eBook |
Author | Don W. Jillie |
Publisher | |
Pages | 36 |
Release | 1961 |
Genre | Fluid mechanics |
ISBN |
Effects of Mach Number, Leading-edge Bluntness, and Sweep on Boundary-layer Transition on a Flat Plate
Title | Effects of Mach Number, Leading-edge Bluntness, and Sweep on Boundary-layer Transition on a Flat Plate PDF eBook |
Author | DON W. JILLIE |
Publisher | |
Pages | 1 |
Release | 1961 |
Genre | |
ISBN |
The effects of leading-edge bluntness and sweep on boundary-layer transition on flat plate models were investigated at Mach numbers of 2.00, 2.50, 3.00, and 4.00. The effect of sweep on transition was also determined on a flat plate model equipped with an elliptical nose at a Mach number of 0.27. Models used for the supersonic investigation had leading-edge radii varying from 0.0005 to 0.040 inch. The free-stream unit Reynolds number was held constant at 15 million per foot for the supersonic tests and the angle of attack was 0 degrees. Surface flow conditions were determined by visual observation and recorded photographically. For the models with the blunter leading edges, the transition Reynolds number (based on free-stream flow conditions) was approximately doubled by an increase in Mach number from 2.50 to 4.00; and nearly the same result was predicted from shock-loss considerations. At all supersonic Mach numbers, increases in sweep reduced the transition Reynolds number and the amount of reduction increased with increases in bluntness. The shock-loss method considerably underestimated the sweep effects, with swept wings. (Author).
Effects of Mach Number, Leading-edge Bluntness, and Sweep on Boundary-layer Transition on a Flat Plate/ by Don W. Jillie; Edward J. Hopkins
Title | Effects of Mach Number, Leading-edge Bluntness, and Sweep on Boundary-layer Transition on a Flat Plate/ by Don W. Jillie; Edward J. Hopkins PDF eBook |
Author | Don W. Jillie |
Publisher | |
Pages | 30 |
Release | 1961 |
Genre | |
ISBN |
Some Effects of Leading-edge Sweep on Boundary-layer Transition at Supersonic Speeds
Title | Some Effects of Leading-edge Sweep on Boundary-layer Transition at Supersonic Speeds PDF eBook |
Author | Gary T. Chapman |
Publisher | |
Pages | 38 |
Release | 1961 |
Genre | Fluid mechanics |
ISBN |
Charts for Estimating Boundary-layer Transition on Flat Plates
Title | Charts for Estimating Boundary-layer Transition on Flat Plates PDF eBook |
Author | Edward J. Hopkins |
Publisher | |
Pages | 36 |
Release | 1970 |
Genre | Boundary layer |
ISBN |
Effect of Mach Number, Leading-edge Bluntnes, and Sweep on Boundary-layer Transition on a Flat Plate
Title | Effect of Mach Number, Leading-edge Bluntnes, and Sweep on Boundary-layer Transition on a Flat Plate PDF eBook |
Author | Don W. Jillie |
Publisher | |
Pages | |
Release | 1961 |
Genre | |
ISBN |
Roughness Effects on Boundary-layer Transition for Blunt-leading-edge Plates at Mach 6
Title | Roughness Effects on Boundary-layer Transition for Blunt-leading-edge Plates at Mach 6 PDF eBook |
Author | Paul F. Holloway |
Publisher | |
Pages | 52 |
Release | 1966 |
Genre | Aerodynamics |
ISBN |