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NACA-TN-2502
Examples of three representative types of airfoil-section stall at low speed
Year: 1951
Abstract: Force, moment, pressure-distribution, and boundary-layer measurements are presented for a series of five airfoil sections. The stalling characteristics of these airfoil sections at low speeds are of three types:
1. Trailing-edge stall (preceded by movement of the turbulent separation point forward from the trailing edge with increasing angle of attack)
2. Leading-edge stall (abrupt flow separation near the leading edge generally without subsequent reattachment)
3. Thin-airfoil stall (preceded by flow separation at the leading edge with reattachment at a point which moves progressively rearward with increasing angle of attack)
The role of the boundary-layer flow and separation processes in relation to stalling as well as the sensitivity of the stall to factors which influence boundary-layer growth, such as Reynolds number, is discussed.
1. Trailing-edge stall (preceded by movement of the turbulent separation point forward from the trailing edge with increasing angle of attack)
2. Leading-edge stall (abrupt flow separation near the leading edge generally without subsequent reattachment)
3. Thin-airfoil stall (preceded by flow separation at the leading edge with reattachment at a point which moves progressively rearward with increasing angle of attack)
The role of the boundary-layer flow and separation processes in relation to stalling as well as the sensitivity of the stall to factors which influence boundary-layer growth, such as Reynolds number, is discussed.
Subject: BOUNDARY
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T18:44:49Z | |
| date available | 2017-09-04T18:44:49Z | |
| date copyright | 01/01/1951 | |
| date issued | 1951 | |
| identifier other | KFPTYDAAAAAAAAAA.pdf | |
| identifier uri | https://lib.yabesh.ir/std/handle/yse/226216 | |
| description abstract | Force, moment, pressure-distribution, and boundary-layer measurements are presented for a series of five airfoil sections. The stalling characteristics of these airfoil sections at low speeds are of three types: 1. Trailing-edge stall (preceded by movement of the turbulent separation point forward from the trailing edge with increasing angle of attack) 2. Leading-edge stall (abrupt flow separation near the leading edge generally without subsequent reattachment) 3. Thin-airfoil stall (preceded by flow separation at the leading edge with reattachment at a point which moves progressively rearward with increasing angle of attack) The role of the boundary-layer flow and separation processes in relation to stalling as well as the sensitivity of the stall to factors which influence boundary-layer growth, such as Reynolds number, is discussed. | |
| language | English | |
| title | NACA-TN-2502 | num |
| title | Examples of three representative types of airfoil-section stall at low speed | en |
| type | standard | |
| page | 53 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1951 | |
| contenttype | fulltext | |
| subject keywords | BOUNDARY | |
| subject keywords | DESIGNATED | |
| subject keywords | LAYER | |
| subject keywords | PROFILES | |
| subject keywords | SECTION | |
| subject keywords | SECTIONS | |
| subject keywords | STALLING | |
| subject keywords | VARIABLES | |
| subject keywords | WING |