Influence of Base Slant on the Wake Structure and Drag of Road VehiclesSource: Journal of Fluids Engineering:;1983:;volume( 105 ):;issue: 004::page 429Author:S. R. Ahmed
DOI: 10.1115/1.3241024Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The time averaged wake structure of a realistically dimensioned quarter scale automobile model was studied in a wind tunnel on the basis of flow visualization, wake surveys, force and pressure measurements. Through a systematic variation of base slant angle in the range of 0 to 40 deg, the ensuing changes in the wake structure were observed and the wake structure present at lowest value of aerodynamic drag is shown. Experimental data were obtained at a model length based Reynolds number of 4.29 million. Correlation of wake structure with drag, pressure distribution, and kinetic energy content of vortex motion in wake is addressed.
keyword(s): Drag (Fluid dynamics) , Wakes , Motor vehicles , Wind tunnels , Automobiles , Reynolds number , Flow visualization , Vortex motion , Force , Pressure , Pressure measurement AND Kinetic energy ,
|
Collections
Show full item record
| contributor author | S. R. Ahmed | |
| date accessioned | 2017-05-08T23:15:44Z | |
| date available | 2017-05-08T23:15:44Z | |
| date copyright | December, 1983 | |
| date issued | 1983 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-27000#429_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/97224 | |
| description abstract | The time averaged wake structure of a realistically dimensioned quarter scale automobile model was studied in a wind tunnel on the basis of flow visualization, wake surveys, force and pressure measurements. Through a systematic variation of base slant angle in the range of 0 to 40 deg, the ensuing changes in the wake structure were observed and the wake structure present at lowest value of aerodynamic drag is shown. Experimental data were obtained at a model length based Reynolds number of 4.29 million. Correlation of wake structure with drag, pressure distribution, and kinetic energy content of vortex motion in wake is addressed. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Influence of Base Slant on the Wake Structure and Drag of Road Vehicles | |
| type | Journal Paper | |
| journal volume | 105 | |
| journal issue | 4 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.3241024 | |
| journal fristpage | 429 | |
| journal lastpage | 434 | |
| identifier eissn | 1528-901X | |
| keywords | Drag (Fluid dynamics) | |
| keywords | Wakes | |
| keywords | Motor vehicles | |
| keywords | Wind tunnels | |
| keywords | Automobiles | |
| keywords | Reynolds number | |
| keywords | Flow visualization | |
| keywords | Vortex motion | |
| keywords | Force | |
| keywords | Pressure | |
| keywords | Pressure measurement AND Kinetic energy | |
| tree | Journal of Fluids Engineering:;1983:;volume( 105 ):;issue: 004 | |
| contenttype | Fulltext |