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Porous wind tunnel corrections for counterrotation propeller testing
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Stefko, George L. Jeracki, Robert J. |
| Copyright Year | 1988 |
| Description | Wind tunnel interference corrections have direct impact on measured propeller efficiency. A systematic series of wind tunnel tests was done in the porous-wall NASA Lewis 8- by 6-Foot Wind Tunnel to determine the wind tunnel interference corrections to the NASA Lewis counterrotation propeller test data. The test results were compared with calculations from a potential flow code to determine the interference corrections. At a Mach number of 0.8, the interference corrections resulted in a -0.008 Mach number correction which reduced the counterrotation propeller net efficiency data by 0.46 percent at the reduced Mach number. Additional wind tunnel tests were done to measure the effect of propeller thrust on wind tunnel wall interference. No wall interference corrections due to propeller thrust were found necessary for the high speed counterrotation propeller data obtained in the porous wall NASA Lewis 8- by 6-Foot Wind Tunnel. |
| File Size | 4746868 |
| Page Count | 18 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880012635 |
| Archival Resource Key | ark:/13960/t3nw4c13f |
| Language | English |
| Publisher Date | 1988-01-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Propellers Prop-fan Technology Wind Tunnel Tests Aerodynamic Interference Wind Tunnel Walls Porosity Turboprop Engines Counter Rotation Computer Programs Mach Number Potential 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 |
