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Application of Prediction Formulas to Aerodynamic Drag Reduction of Door Mirrors
Technical Paper
2015-01-1528
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
It is considered that door mirror drag is composed of not only profile drag but also interference drag that is generated by the mixing of airflow streamlines between door mirrors and vehicle body. However, the generation mechanism of interference drag remained unexplained, so elucidating mechanism for countermeasures reducing drag have been needed. In this study, the prediction formulas for door mirror drag expressed by functions in relation to velocities around the vehicle body were derived and verified by wind tunnel test. The predicted values calculated by formulas were compared with the measured values and an excellent agreement was found. In summary, new prediction formulas made it possible to examine low drag mirror including profile and interference drag.
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Citation
Hirose, K., Nakagawa, R., Ura, Y., Kawamata, H. et al., "Application of Prediction Formulas to Aerodynamic Drag Reduction of Door Mirrors," SAE Technical Paper 2015-01-1528, 2015, https://doi.org/10.4271/2015-01-1528.Also In
References
- Howell , J. , Windsor , S. , and Le Good , G. A Novel Test Rig for the Aerodynamic Development of a Door Mirror SAE Technical Paper 2006-01-0340 2006 10.4271/2006-01-0340
- Bannister , M. Drag and Dirt Deposition Mechanisms of External Rear View Mirrors and Techniques Used for Optimisation SAE Technical Paper 2000-01-0486 2000 10.4271/2000-01-0486
- Nakagawa , K. , Kohri , I. , and Yanagimoto , K. Aerodynamic Research of Door Mirror Journal of Society of Automotive Engineers of Japan 39 3 252 259 1985
- Iacovoni , D. , Zeuty , E. , and Morello , D. Wind Noise and Drag Optimization Test Method for Sail-Mounted Exterior Mirrors SAE Technical Paper 2003-01-1702 2003 10.4271/2003-01-1702