Loading...
Please wait, while we are loading the content...
Similar Documents
Skin friction reduction in supersonic flow by injection through slots, porous sections and combinations of the two
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Schetz, J. A. Vanovereem, J. |
| Copyright Year | 1975 |
| Description | An experimental study of skin friction reduction in a Mach 3.0 air steam with gaseous injection through a tangential slot, a porous wall section, and combinations of the two was conducted. The primary data obtained were wall shear values measured directly with a floating element balance and also inferred from Preston Tube measurements. Detailed profiles at several axial stations, wall pressure distributions and schlieren photographs are presented. The data indicate that a slot provides the greatest skin friction reduction in comparison with a reference flat plate experiment. The porous wall section arrangement suffers from an apparent roughness-induced rise in skin friction at low injection rates compared to the flat plate. The combination schemes demonstrated a potential for gain. |
| File Size | 2023852 |
| Page Count | 62 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19750009542 |
| Archival Resource Key | ark:/13960/t4km42p53 |
| Language | English |
| Publisher Date | 1975-03-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Supersonic Flow Turbulent Boundary Layer Friction Reduction Fluid Injection Skin Friction Wind Tunnels Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
