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Wind tunnel investigation of three axisymmetric cowls of different lengths at mach numbers from 0.60 to 0.92
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Re, Richard J. Abeyounis, William K. |
| Copyright Year | 1993 |
| Description | Pressure distributions on three inlets having different cowl lengths were obtained in the Langley 16-Foot Transonic Tunnel. The cowl diameter ratio (highlight diameter to maximum diameter) was 0.85 and the cowl length ratios (cowl length to maximum diameter) were 0.337, 0.439, and 0.547. The cowls had identical nondimensionalized (with respect to cowl length) external geometry and identical internal geometry. The internal contraction ratio (highlight area to throat area) was 1.250. The inlets had longitudinal rows of static pressure orifices on the top and bottom (external) surfaces and on the contraction (internal) and diffuser surfaces. The afterbody was cylindrical in shape, and its diameter was equal to the maximum diameter of the cowl. Depending on the cowl configuration and free-stream Mach number, the mass-flow ratio varied between 0.27 and 0.87 during the tests. Angle of attack varied from 0 to 4.1 deg at selected Mach numbers and mass-flow ratios, and the Reynolds number varied with the Mach number from 3.2x10(exp 6) to 4.2x10(exp 6) per foot. |
| File Size | 12040595 |
| Page Count | 280 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940011208 |
| Archival Resource Key | ark:/13960/t5p896j06 |
| Language | English |
| Publisher Date | 1993-09-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Static Pressure Subsonic Speed Cowlings Reynolds Number Afterbodies Engine Inlets Pressure Distribution Length Cylindrical Bodies Wind Tunnel Tests Angle of Attack Mach Number Axisymmetric Bodies Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
