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NACA-TR-546
The effect of turbulence on the drag of flat plates
Year: 1937
Abstract: in determining the effect of turbulence on the forces exerted on bodies in the air stream of a wind tunnel, it is commonly assumed that the indications of the standard Pitot-static tube used to determine the air speed are not dependent on the turbulence. To investigate the truth of this assumption, the drag of a normally exposed flat plate, the difference in pressure between the front and rear of a thin circular disk, the rate of rotation of a vane anemometer, and the pressure developed by a standard Pitot-static tube were measured in an air stream for several conditions of turbulence. The results may be interpreted as indicating that there is no appreciable effect of turbulence on the vane anemometer and the standard pitot-static tube, but that there is small effect on the drag of a flat plate and the pressure difference between front and rear of a disk.
Subject: AERODYNAMIC
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T16:23:08Z | |
| date available | 2017-09-04T16:23:08Z | |
| date copyright | 01/01/1937 | |
| date issued | 1937 | |
| identifier other | TRWUYDAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/86506 | |
| description abstract | in determining the effect of turbulence on the forces exerted on bodies in the air stream of a wind tunnel, it is commonly assumed that the indications of the standard Pitot-static tube used to determine the air speed are not dependent on the turbulence. To investigate the truth of this assumption, the drag of a normally exposed flat plate, the difference in pressure between the front and rear of a thin circular disk, the rate of rotation of a vane anemometer, and the pressure developed by a standard Pitot-static tube were measured in an air stream for several conditions of turbulence. The results may be interpreted as indicating that there is no appreciable effect of turbulence on the vane anemometer and the standard pitot-static tube, but that there is small effect on the drag of a flat plate and the pressure difference between front and rear of a disk. | |
| language | English | |
| title | NACA-TR-546 | num |
| title | The effect of turbulence on the drag of flat plates | en |
| type | standard | |
| page | 5 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1937 | |
| contenttype | fulltext | |
| subject keywords | AERODYNAMIC | |
| subject keywords | ANEMOMETERS | |
| subject keywords | CIRCULAR | |
| subject keywords | DISKS | |
| subject keywords | DRAG | |
| subject keywords | EFFECTS | |
| subject keywords | FLAT | |
| subject keywords | FLOW | |
| subject keywords | PITOT | |
| subject keywords | PLATES | |
| subject keywords | SHAPES | |
| subject keywords | TESTS | |
| subject keywords | TUBES | |
| subject keywords | TUNNEL | |
| subject keywords | TUNNELS | |
| subject keywords | TURBULENCE | |
| subject keywords | TURBULENT | |
| subject keywords | WIND |