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Reducing secondary losses by blowing cold air in a turbine
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Koschel, W. |
| Copyright Year | 1977 |
| Description | Local blowing on the profile suction side of the turbine guide wheel blades can be effective in preventing the propagation of secondary flows that is, the transport of casing and hub boundary layers by pressure gradients. Some preliminary results on how the blowing should be accomplished in order to influence the secondary flows in the desired manner are given. The effectiveness of blowing is demonstrated. Blowing is also seen to be more effective than using boundary layer slots as far as diminishing losses in the rim zones is concerned. |
| File Size | 5101537 |
| Page Count | 29 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780004141 |
| Archival Resource Key | ark:/13960/t09w57p7p |
| Language | English |
| Publisher Date | 1977-11-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Axial Flow Turbines Turbine Blades Efficiency Air Jets Flow Distribution Secondary Flow Compressible Flow Boundary Layer Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
