| Autor: |
B Storms, P Castellucci, James T. Heineck, Fred Browand, Lawrence J. DeChant, James C. Ross, J Brown, P Chatelain, T Hsu, Anthony Leonard, Jason M. Ortega, Mustapha Hammache, Kambiz Salari, D Arcas, Stephen M. Walker, Jeffrey L. Payne, Christopher J. Roy, R McCallen, B. Hassan, D Pointer, R Mehta, M Rubel |
| Rok vydání: |
2004 |
| Předmět: |
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| Popis: |
Listed are summaries of the activities and accomplishments during this second quarter reporting period for each of the consortium participants. The following are some highlights for this reporting period: (1) Experiments and computations guide conceptual designs for reduction of drag due to tractor-trailer gap flow, trailer underbody, and base drag. (2) Steady and unsteady RANS simulations for the GTS geometry are being finalized for development of clear modeling guidelines with RANS. (3) Full geometry and tunnel simulations on the GCM geometry are underway. (4) CRADA with PACCAR is supporting computational parametric study to determine predictive need to include wind tunnel geometry as limits of computational domain. (5) Road and track test options are being investigated. (6) Apparatus to investigate tire splash and spray has been designed and is under construction. (7) Vortex methods have improved techniques for the treatment of vorticity near surface and spinning geometries like rotating tires. (8) Wind tunnel experiments on model rail cars demonstrate that empty coal cars exhibit substantial aerodynamic drag compared to full coal cars, indicating that significant fuel savings could be obtained by reducing the drag of empty coal cars. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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