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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Ardebili, Mahmoud Andreopoulos, Yiannis |
| Copyright Year | 2003 |
| Abstract | An experimental investigation of a separated boundary layer flow has been attempted which has been created by perturbing a flat plate flow with a favorable pressure gradient immediately followed by an adverse pressure gradient. The aim of the research program is possible control of flow separation by means of free stream turbulence. The flow is configured in a large-scale low speed wind tunnel where measurements of turbulence can be obtained with high spatial and temporal resolution. A model has been designed by using CFD analysis. Mean wall pressure and vorticity flux measurements are reported in this paper. Twelve experiments with three different mesh size grids at three different Reynolds numbers have been carried out. Three bulk flow parameters seem to characterize the flow: The Reynolds number of the boundary layer, Re+, the Reynolds number of the flow through the grid, ReM, and the solidity of the grid. It was found that the pressure coefficient depends weakly on the solidity of the grids. Vorticity flux also depends on the grid used to generate free stream turbulence. The location of maximum or minimum vorticity flux moves upstream at higher ReM. |
| Sponsorship | Fluids Engineering Division |
| Starting Page | 841 |
| Ending Page | 847 |
| Page Count | 7 |
| File Format | |
| ISBN | 0791836975 |
| DOI | 10.1115/FEDSM2003-45085 |
| e-ISBN | 0791836738 |
| Volume Number | Volume 2: Symposia, Parts A, B, and C |
| Conference Proceedings | ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference |
| Language | English |
| Publisher Date | 2003-07-06 |
| Publisher Place | Honolulu, Hawaii, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Turbulence Computational fluid dynamics Flat plates Wind tunnels Flow separation Reynolds number Vorticity Pressure gradient Resolution (optics) Flow (dynamics) Pressure Boundary layers |
| Content Type | Text |
| Resource Type | Article |
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