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NACA-TR-664
Wind-Tunnel Investigation of an N.A.C.A. 23012 Airfoil with Various Arrangements of Slotted Flaps
Year: 1939
Abstract: An investigation was made in the 7 by 10-foot wind tunnel and in the variable-density wind tunnel of the NACA 23012 airfoil with various slotted-flap arrangements. The purpose of the investigation in the 7 by 10-foot wind tunnel was to determine the airfoil section aerodynamic characteristics as affected by flap shape, slot shape, and flap location. The flap position for maximum lift; polars for arrangements favorable for take-off and climb; and complete lift, drag, and pitching-moment characteristics for selected optimum arrangements were determined. The best arrangements were tested in the variable-density tunnel at an effective Reynolds number of 8,000,000. In addition, data from both wind tunnels are included for plain, split, external-airfoil, and Fowler flaps for purposes of comparison.
Subject: AERODYNAMIC
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T17:22:03Z | |
| date available | 2017-09-04T17:22:03Z | |
| date copyright | 01/01/1939 | |
| date issued | 1939 | |
| identifier other | ZUWUYDAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std/handle/yse/145256 | |
| description abstract | An investigation was made in the 7 by 10-foot wind tunnel and in the variable-density wind tunnel of the NACA 23012 airfoil with various slotted-flap arrangements. The purpose of the investigation in the 7 by 10-foot wind tunnel was to determine the airfoil section aerodynamic characteristics as affected by flap shape, slot shape, and flap location. The flap position for maximum lift; polars for arrangements favorable for take-off and climb; and complete lift, drag, and pitching-moment characteristics for selected optimum arrangements were determined. The best arrangements were tested in the variable-density tunnel at an effective Reynolds number of 8,000,000. In addition, data from both wind tunnels are included for plain, split, external-airfoil, and Fowler flaps for purposes of comparison. | |
| language | English | |
| title | NACA-TR-664 | num |
| title | Wind-Tunnel Investigation of an N.A.C.A. 23012 Airfoil with Various Arrangements of Slotted Flaps | en |
| type | standard | |
| page | 36 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1939 | |
| contenttype | fulltext | |
| subject keywords | AERODYNAMIC | |
| subject keywords | AIRFOIL | |
| subject keywords | AIRFOILS | |
| subject keywords | CHARACTERISTICS | |
| subject keywords | COEFFICIENTS | |
| subject keywords | DRAG | |
| subject keywords | FLAPS | |
| subject keywords | LIFT | |
| subject keywords | LOCATION | |
| subject keywords | MOMENTS | |
| subject keywords | PITCHING | |
| subject keywords | POSITION | |
| subject keywords | PROFILES | |
| subject keywords | SHAPES | |
| subject keywords | SLOTS | |
| subject keywords | SPLIT | |
| subject keywords | TESTS | |
| subject keywords | TORQUE | |
| subject keywords | TUNNEL | |
| subject keywords | WIND | |
| subject keywords | WING |