Passive Control of Three-Dimensional Separated Vortical Flow Associated With Swept Rearward-Facing StepsSource: Journal of Fluids Engineering:;1989:;volume( 111 ):;issue: 001::page 99Author:G. V. Selby
DOI: 10.1115/1.3243608Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Control of the three-dimensional separated-flow region down-stream of a swept, rearward-facing step has been studied with the purpose of reducing the separated-flow region and attendant drag. Results have indicated that geometric modifications in the region downstream of the step where the spanwise vortex is formed has little effect on the extent of the separated flow, while “conical-lip” and “vortex-trough” base modifications lead to a significant reduction in reattachment distances. The “conical-lip” modification involves a step lip with variable radius and the “vortex troughs” are grooves in the surface upstream of the step which produce longitudinal vortices.
keyword(s): Foundry coatings , Vortex flow , Passive control , Vortices , Flow (Dynamics) AND Drag (Fluid dynamics) ,
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| contributor author | G. V. Selby | |
| date accessioned | 2017-05-08T23:30:22Z | |
| date available | 2017-05-08T23:30:22Z | |
| date copyright | March, 1989 | |
| date issued | 1989 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-27040#99_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/105609 | |
| description abstract | Control of the three-dimensional separated-flow region down-stream of a swept, rearward-facing step has been studied with the purpose of reducing the separated-flow region and attendant drag. Results have indicated that geometric modifications in the region downstream of the step where the spanwise vortex is formed has little effect on the extent of the separated flow, while “conical-lip” and “vortex-trough” base modifications lead to a significant reduction in reattachment distances. The “conical-lip” modification involves a step lip with variable radius and the “vortex troughs” are grooves in the surface upstream of the step which produce longitudinal vortices. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Passive Control of Three-Dimensional Separated Vortical Flow Associated With Swept Rearward-Facing Steps | |
| type | Journal Paper | |
| journal volume | 111 | |
| journal issue | 1 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.3243608 | |
| journal fristpage | 99 | |
| journal lastpage | 101 | |
| identifier eissn | 1528-901X | |
| keywords | Foundry coatings | |
| keywords | Vortex flow | |
| keywords | Passive control | |
| keywords | Vortices | |
| keywords | Flow (Dynamics) AND Drag (Fluid dynamics) | |
| tree | Journal of Fluids Engineering:;1989:;volume( 111 ):;issue: 001 | |
| contenttype | Fulltext |