Calculation of the Aerodynamic Forces on Automotive Lifting SurfacesSource: Journal of Fluids Engineering:;1985:;volume( 107 ):;issue: 004::page 438Author:J. Katz
DOI: 10.1115/1.3242507Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A numerical technique was developed to investigate the performance of automotive lifting surfaces in close proximity to ground. The model is based on the Vortex Lattice Method and includes freely-deforming wake elements. The ground effect was simulated by reflection and both steady and unsteady pressures and loads on various wing planforms were considered. Calculated results are presented for wings having both positive and negative incidences, with and without ground effect. Also the transient lift of a wing in a plunging motion was analyzed in ground proximity and at a negative angle of attack. Finally the periodic lift fluctuations on the front winglet of a racing car, due to its suspension oscillations, were calculated and found to exceed approximately twice the steady-state value.
keyword(s): Oscillations , Aerodynamics , Motion , Reflection , Stress , Fluctuations (Physics) , Wakes , Vortices , Steady state AND Wings ,
|
Collections
Show full item record
| contributor author | J. Katz | |
| date accessioned | 2017-05-08T23:20:29Z | |
| date available | 2017-05-08T23:20:29Z | |
| date copyright | December, 1985 | |
| date issued | 1985 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-27016#438_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/99975 | |
| description abstract | A numerical technique was developed to investigate the performance of automotive lifting surfaces in close proximity to ground. The model is based on the Vortex Lattice Method and includes freely-deforming wake elements. The ground effect was simulated by reflection and both steady and unsteady pressures and loads on various wing planforms were considered. Calculated results are presented for wings having both positive and negative incidences, with and without ground effect. Also the transient lift of a wing in a plunging motion was analyzed in ground proximity and at a negative angle of attack. Finally the periodic lift fluctuations on the front winglet of a racing car, due to its suspension oscillations, were calculated and found to exceed approximately twice the steady-state value. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Calculation of the Aerodynamic Forces on Automotive Lifting Surfaces | |
| type | Journal Paper | |
| journal volume | 107 | |
| journal issue | 4 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.3242507 | |
| journal fristpage | 438 | |
| journal lastpage | 443 | |
| identifier eissn | 1528-901X | |
| keywords | Oscillations | |
| keywords | Aerodynamics | |
| keywords | Motion | |
| keywords | Reflection | |
| keywords | Stress | |
| keywords | Fluctuations (Physics) | |
| keywords | Wakes | |
| keywords | Vortices | |
| keywords | Steady state AND Wings | |
| tree | Journal of Fluids Engineering:;1985:;volume( 107 ):;issue: 004 | |
| contenttype | Fulltext |