Yıl 2017,
Cilt: 6 Sayı: 1, 30 - 40, 14.04.2017
Öz
In this study, it is aimed to simulate aerodynamic forces acting on the windshield wiper system on a simplified geometry at different blade angles. Numerical simulations reveal that at critical blade angles undesired lift forces can reach their peak values. The blade-spoiler geometry is modified in a manner to alter aerodynamic lift and drag forces. On a simplified front windshield it is shown that at a blade angle of 40 degree, lift forces can be converted to pressing forces by implementing suggested modifications. Furthermore Lambda-2 vortex identification is used to understand the formation of vortex structures at different blade angles. On the other hand, soiling tests are performed both on original and modified wiper geometries and their performances are compared.
Anahtar Kelimeler
Kaynakça
- Clarke, J. S. and Lumley, R. R. "Problems Associated With Windscreen Wiping". Paper 600134, SAE Summer Meeting, Edgewater Beach Hotel, Chicago, Ill., June 5-10, 1960.
- Dawley, M. W., "Aerodynamic Effects on Automotive Components". Paper 650134, International Automotive Engineering Congress, Detroit, Michigan, January 11-15, 1965. Society of Automotive Engineers Inc.
- Jallet, S., Devos, S., Maubray, D., Sortais, J-L, Marmonier, F., and Dreher, T., "Numerical simulation of wiper system aerodynamic behaviour". SAE Paper 2001-01-0036. SAE 2001 World Congress, Detroit, Michigan, USA, 03/05/2001 - 03/08/2001. Society of Automotive Engineers, Inc., Warrendale, Pennsylvania, USA.
- Billot, P., Jallet, S., and Marmonier, F. "Simulation of aerodynamic uplift consequences on pressure repartition~Application on an innovative wiper blade design." SAE Paper 2001-01-0043. SAE 2001 World Congress, Detroit, Michigan, USA, 03/05/2001 - 03/08/2001. Society of Automotive Engineers, Inc., Warrendale, Pennsylvania, USA.
- Gaylard A. P., Wilson A. C., & Bambrook G. S. J. (2006) A Quasi-Unsteady Description of Windscreen Wiper Induced Flow Structures. Paper presented at 6th MIRA International Vehicle Aerodynamics Conference, October 2006, Nuneaton: MIRA Ltd.
- Z. G. Yang, X. M. Ju, and Q. L. Li, "Numerical Analysis on Aerodynamic Forces on Wiper System". Proceedings of the Sixth International Conference on Fluid Mechanics, AIP Conf. Proc. Vol 1376, 213-217 (2011).
- Seung Ho Lee, Sung Won Lee, Sang Hyuk Lee, Nahmkeon Hur, Woo-Nyoung Choi and Jin-Hwan Sul, "(In Korean) A Numerical Study on the Aerodynamic Lift of the Windshield Wiper of High-speed Passenger Vehicles," The Proceedings of Asian Symposium on Computational Heat Transfer and Fluid Flow 2009, Vol.3, pp.185-190, Jeju (Oct. 2009).
- Jeong, J. and Hussain, F. "On the identification of a vortex". Journal of Fluid Mechanics, (1995), 285, pp. 69-94.
- ANSYS Fluent Theory Guide Release 15, pp.2,3,51-54, 2013.
- http://www.fkfs.de/en/automotive-engineering/leistungen/wind-tunnels/thermal-wind-tunnel/
Yıl 2017,
Cilt: 6 Sayı: 1, 30 - 40, 14.04.2017
Öz
Kaynakça
- Clarke, J. S. and Lumley, R. R. "Problems Associated With Windscreen Wiping". Paper 600134, SAE Summer Meeting, Edgewater Beach Hotel, Chicago, Ill., June 5-10, 1960.
- Dawley, M. W., "Aerodynamic Effects on Automotive Components". Paper 650134, International Automotive Engineering Congress, Detroit, Michigan, January 11-15, 1965. Society of Automotive Engineers Inc.
- Jallet, S., Devos, S., Maubray, D., Sortais, J-L, Marmonier, F., and Dreher, T., "Numerical simulation of wiper system aerodynamic behaviour". SAE Paper 2001-01-0036. SAE 2001 World Congress, Detroit, Michigan, USA, 03/05/2001 - 03/08/2001. Society of Automotive Engineers, Inc., Warrendale, Pennsylvania, USA.
- Billot, P., Jallet, S., and Marmonier, F. "Simulation of aerodynamic uplift consequences on pressure repartition~Application on an innovative wiper blade design." SAE Paper 2001-01-0043. SAE 2001 World Congress, Detroit, Michigan, USA, 03/05/2001 - 03/08/2001. Society of Automotive Engineers, Inc., Warrendale, Pennsylvania, USA.
- Gaylard A. P., Wilson A. C., & Bambrook G. S. J. (2006) A Quasi-Unsteady Description of Windscreen Wiper Induced Flow Structures. Paper presented at 6th MIRA International Vehicle Aerodynamics Conference, October 2006, Nuneaton: MIRA Ltd.
- Z. G. Yang, X. M. Ju, and Q. L. Li, "Numerical Analysis on Aerodynamic Forces on Wiper System". Proceedings of the Sixth International Conference on Fluid Mechanics, AIP Conf. Proc. Vol 1376, 213-217 (2011).
- Seung Ho Lee, Sung Won Lee, Sang Hyuk Lee, Nahmkeon Hur, Woo-Nyoung Choi and Jin-Hwan Sul, "(In Korean) A Numerical Study on the Aerodynamic Lift of the Windshield Wiper of High-speed Passenger Vehicles," The Proceedings of Asian Symposium on Computational Heat Transfer and Fluid Flow 2009, Vol.3, pp.185-190, Jeju (Oct. 2009).
- Jeong, J. and Hussain, F. "On the identification of a vortex". Journal of Fluid Mechanics, (1995), 285, pp. 69-94.
- ANSYS Fluent Theory Guide Release 15, pp.2,3,51-54, 2013.
- http://www.fkfs.de/en/automotive-engineering/leistungen/wind-tunnels/thermal-wind-tunnel/
Toplam 10 adet kaynakça vardır.
Ayrıntılar
| Bölüm | Article |
|---|---|
| Yazarlar | |
| Yayımlanma Tarihi | 14 Nisan 2017 |
| Gönderilme Tarihi | 5 Eylül 2016 |
| Yayımlandığı Sayı | Yıl 2017 Cilt: 6 Sayı: 1 |