SavedAdd your journal

Journals / International Journal of Automotive Science and Technology / 2021 / Cilt: 5 - Sayı: 4

Reducing of Pressure Based Drag Force of a Bus Model by Flow Control Rod in Wind Tunnel

Cihan Bayindirli
Pages
412–418
Publication Date
2022-10-19
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

By this passive flow control method, aerodynamic drag reductions were obtained up to 10.06%, 7.35% and 7.85% respectively.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The aerodynamic force of vehicles has been affected by the geometric shape of front surface.
📊
Key Findings & Data:The experimental tests were conducted at 6 different free flow velocities.
💡
Conclusion & Impact:By this passive flow control method, aerodynamic drag reductions were obtained up to 10.06%, 7.35% and 7.85% respectively.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Aerodynamic · bus model · drag coefficient

Abstract

The aerodynamic force of vehicles has been affected by the geometric shape of front surface. The aerodynamic force of a scaled bus model and CD were experimentally determined in wind tunnel. The experimental tests were conducted at 6 different free flow velocities. They were performed in the range of 3.8×103- 7.9×103 Reynolds number. The drawing data of model bus were obtained by 3D scanned and drawn in Solid Works program. The circular cross section flow control rod was designed in 10 mm, 20 mm and 30 mm diameter and positioned at 3 different locations (L/H) on the model bus. By this passive flow control method, aerodynamic drag reductions were obtained up to 10.06%, 7.35% and 7.85% respectively.

🔖

Cite This Article

Bayindirli, C. (2022). Reducing of Pressure Based Drag Force of a Bus Model by Flow Control Rod in Wind Tunnel. International Journal of Automotive Science and Technology, Cilt: 5 - Sayı: 4, 412–418. https://ajindex.com/articles/540471

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (15)

  1. Cattafesta. L. N. & Sheplak. M. (2011). Actuators for active flow control. Annual Review of Fluid Mechanics. 43(1). 247–272
  2. Altaf A. Omar. A. & Asrar. W. (2014). Review of passive drag reduction techniques for bluff road vehicles. IIUM Engineering Journal. 15(1). 61-69
  3. Wood. R.M. and Bauer. S.X.S. (2003). Simple and low cost aerodynamic drag reduction devices for tractor-trailer Trucks. SAE Technical Paper. 01–3377. 1-18
  4. Cui. W. Zhu. H. Xia. C. Yanga. Z. (2015). Comparison of steady blowing and synthetic jets for aerodynamic drag reduction of a simplified vehicle. Procedia Engineering 126. 388 – 392
  5. Bayındırlı. C. Akansu. Y.E. Celik. M. (2020). Experimental And Numerical Studies On Improvement Of Drag Force Of A Bus Model Using Different Spoiler Models. Int. J. Heavy Vehicle Systems. 27-6. 743-776
  6. Hucho. W. H. & Sovran. G. (1993). Aerodynamics of road vehicles. Annual Review of Fluid Mechanics. 25(1). 485-537
  7. Mohamed-Kassim. Z. Filippone. A. (2010). Fuel savings on a heavy vehicle via aerodynamic drag reduction. Transportation Research Part D 15. 275–284
  8. Hassan S.M.R. Islam. T. Ali. M. Islam. Md. Q.(2014). Numerical Study on Aerodynamic Drag Reduction of Racing Cars. Procedia Engineering 90. 308 – 313
  9. Rohatgi. U.S. (2012). Methods of Reducing Vehicle Aerodynamic Drag. ASME 2012 Heat Transfer Conference Puesto Rico.USA
  10. Cui. W. Zhu. H. Xia. C. Yanga. Z (2015).” Comparison of steady blowing and synthetic jets for aerodynamic drag reduction of a simplified vehicle” Procedia Engineering 126. 388 – 392
  11. Jonathan. M. Erik. F. Gregory. R. Rajan. K. Kunihiko. T. Farrukh. A. Yoshihiro. Y. and Kei M. (2015).” Drag reduction on a flat-back ground vehicle with active flow control” Journal of Wind Engineering and Industrial Aerodynamics 145. 292–303
  12. Çengel. Y.A. and Cimbala. J.M. (2008). Akışkanlar Mekaniği Temelleri ve Uygulamaları. Güven Bilimsel Yayınları. 562-599
  13. Özel. M. Aygün. E. Akansu. Y.E. Bayindirli. C. and Seyhan. M. (2015). The passive flow control around a truck-trailer model” International Journal of Automotive Engineering and Technologies 4 -4. 185 – 192
  14. Bayindirli. C. and Celik. M. (2018).”The experimentally and numerically determination of the drag coefficient of a bus model”. International Journal of Automotive Engineering and Technologies 7-3: 117-123
  15. Bansal, R., & Sharma, R. B. (2014). Drag reduction of passenger car using add-on devices. Journal of Aerodynamics, 2014, 1-13