Methods of reducing vehicle aerodynamic drag
A small scale model (length 1710 mm) of General Motor SUV was built and tested in the wind tunnel for expected wind conditions and road clearance. Two passive devices, rear screen which is plate behind the car and rear fairing where the end of the car is aerodynamically extended, were incorporated in the model and tested in the wind tunnel for different wind conditions. The conclusion is that rear screen could reduce drag up to 6.5% and rear fairing can reduce the drag by 26%. There were additional tests for front edging and rear vortex generators. The results for drag reduction were mixed. It should be noted that there are aesthetic and practical considerations that may allow only partial implementation of these or any drag reduction options.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE NA NATIONAL NUCLEAR SECURITY ADMINISTRATION (NNSA)
- DOE Contract Number:
- DE-AC02-98CH10886
- OSTI ID:
- 1044761
- Report Number(s):
- BNL-98039-2012-CP; R&D Project: NN4006010; TRN: US201214%%809
- Resource Relation:
- Conference: ASME 2012 Heat Transfer Conference; Puerto Rico, USA; 20120708 through 20120712
- Country of Publication:
- United States
- Language:
- English
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