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Computational Simulation of a Heavy Vehicle Trailer Wake
| 题名： | Computational Simulation of a Heavy Vehicle Trailer Wake |
| 作者： | Salari, K;McCallen, R;Dunn, T;Ortega, J M; |
| 关键词： | 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; AERODYNAMICS; BOUNDARY CONDITIONS; BUSES; GEOMETRY; SIMULATION; TURBULENCE; VELOCITY; WIND TUNNELS |
| 摘要： | To better understand the flow mechanisms that contribute to the aerodynamic drag of heavy vehicles, unsteady large-eddy simulations are performed to model the wake of a truncated trailer geometry above a no-slip surface. The truncation of the heavy vehicle trailer is done to reduce the computational time needed to perform the simulations. Both unsteady and time-averaged results are presented from these simulations for two grids. A comparison of velocity fields with those obtained from a wind tunnel study demonstrate that there is a distinct di.erence in the separated wake of the experimental and computational results, perhaps indicating the influence of the geometry simplification, turbulence model, boundary conditions, or other aspects of the chosen numerical approach. |
| 报告类型： | 科技报告 |
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