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NACA-TR-D-1053
Investigation of turbulent flow in a two-dimensional channel
Year: 1951
Abstract: A detailed exploration of the field of mean and fluctuating quantities in a two-dimensional turbulent channel flow is presented. The measurements were repeated at three Reynolds numbers, 12,300, 30,800, and 61,600, based on the half width of the channel and the maximum mean velocity. A channel of 5-inch width and 12:1 aspect ratio was used for the >investigation. Mean-speed and axial-fluctuation measurements were made well within the laminar sublayer. The semitheoretical predictions concerning the extent of the laminar sublayer were confirmed. The distribution of the velocity fluctuations in the direction of mean flow u' shows that the influence of the viscosity extends farther from the wall than indicated by the mean velocity profile, the region of influence being approximately four times as wide.
Subject: CHANNEL FLOW
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T18:07:41Z | |
| date available | 2017-09-04T18:07:41Z | |
| date copyright | 01/01/1951 | |
| date issued | 1951 | |
| identifier other | GPONEEAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;jsery=autho162s7D8308/handle/yse/190612 | |
| description abstract | A detailed exploration of the field of mean and fluctuating quantities in a two-dimensional turbulent channel flow is presented. The measurements were repeated at three Reynolds numbers, 12,300, 30,800, and 61,600, based on the half width of the channel and the maximum mean velocity. A channel of 5-inch width and 12:1 aspect ratio was used for the >investigation. Mean-speed and axial-fluctuation measurements were made well within the laminar sublayer. The semitheoretical predictions concerning the extent of the laminar sublayer were confirmed. The distribution of the velocity fluctuations in the direction of mean flow u' shows that the influence of the viscosity extends farther from the wall than indicated by the mean velocity profile, the region of influence being approximately four times as wide. | |
| language | English | |
| title | NACA-TR-D-1053 | num |
| title | Investigation of turbulent flow in a two-dimensional channel | en |
| type | standard | |
| page | 26 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1951 | |
| contenttype | fulltext | |
| subject keywords | CHANNEL FLOW | |
| subject keywords | COMPUTATIONAL FLUID DYNAMICS | |
| subject keywords | ENERGY TRANSFER | |
| subject keywords | SHEAR STRESS | |
| subject keywords | TURBULENT FLOW | |
| subject keywords | TWO DIMENSIONAL FLOW | |
| subject keywords | UNSTEADY FLOW | |
| subject keywords | VELOCITY DISTRIBUTION | |
| subject keywords | WALL FLOW |