Citation
Nicholson, Kenneth F. (1958) The Effects of Blunt Leading Edges on Delta Wings at Mach 5.8. Engineer's thesis, California Institute of Technology. doi:10.7907/ZSFZ-MN41. https://resolver.caltech.edu/CaltechETD:etd-01242006-094259
Abstract
NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. Pressure distributions were measured on a series of four delta wings with subsonic and supersonic leading edges, both sharp and blunt. The blunt leading edge radius was about 0.5 per cent of root chord. Schlieren studies were also made to determine top and side view shock locations. The tests were conducted at a nominal Mach number of 5.8, and at Reynolds numbers between 0.335 x 10(6) and 0.901 x 10(6) based on root chord. Angular settings covered a range [...] in pitch at zero yaw (about [...]), and a range of v/V = +/- 0.125 (about +/- 7.2°) at a fixed angle of pitch of 11.5°. The effects of bluntness were found to be small. Also, the pressures produced by shock wave interactions with the boundary layer, and the inviscid pressures generated by the blunt leading edges, were found to be small compared with the inviscid pressures producing lift on the basic wing. Spanwise pressure distributions show no similarity to those obtained by linearized theory. Centerline lower surface pressure in pitch at zero yaw is bracketed between the Newtonian value [...] and the two-dimensional exact value.
Item Type: | Thesis (Engineer's thesis) |
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Subject Keywords: | (Aeronautical Engineering) |
Degree Grantor: | California Institute of Technology |
Division: | Engineering and Applied Science |
Major Option: | Aeronautics |
Thesis Availability: | Public (worldwide access) |
Research Advisor(s): |
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Group: | GALCIT |
Thesis Committee: |
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Defense Date: | 1 January 1958 |
Record Number: | CaltechETD:etd-01242006-094259 |
Persistent URL: | https://resolver.caltech.edu/CaltechETD:etd-01242006-094259 |
DOI: | 10.7907/ZSFZ-MN41 |
Default Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
ID Code: | 317 |
Collection: | CaltechTHESIS |
Deposited By: | Imported from ETD-db |
Deposited On: | 27 Jan 2006 |
Last Modified: | 16 Oct 2023 22:51 |
Thesis Files
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PDF (Nicholson_kf_1958.pdf)
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PDF (Nicholson_kf_1958_Fig_14.pdf)
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PDF (Nicholson_kf_1958_Fig_15.pdf)
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PDF (Nicholson_kf_1958_Fig_17.pdf)
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PDF (Nicholson_kf_1958_Fig_22.pdf)
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PDF (Nicholson_kf_1958_Fig_25.pdf)
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PDF (Nicholson_kf_1958_Fig_36.pdf)
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PDF (Nicholson_kf_1958_Fig_37.pdf)
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