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A wind tunnel investigation of circular and straked cylinders in transonic cross flow
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Macha, J. |
| Copyright Year | 1976 |
| Description | Pressure distributions around circular and circular/strake cylinders were measured in a wind tunnel at Mach numbers from 0.6 to 1.2 with Reynolds number independently variable from 10,000 to 100,000. The local pressures are integrated over the cylinder surface to determine the variation of drag coefficient with both Mach number and Reynolds number. Effects of tunnel blockage are evaluated by comparing results from circular cylinders of various diameters at common Mach and Reynolds number conditions. Compressibility effects are concluded to be responsible for a flight reduction of the drag coefficient near Mach 0.7. Drag increases with strake height, presumably approaching a maximum drag corresponding to a flat plate configuration. |
| File Size | 10153536 |
| Page Count | 39 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770008057 |
| Archival Resource Key | ark:/13960/t8kd6pg3p |
| Language | English |
| Publisher Date | 1976-11-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Transonic Flow Wind Tunnels Drag Flat Plates Cylindrical Bodies Pressure Distribution Circular Cylinders Cross Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
