Araba Camının Aerodinamik Etkisi

Yıl 2023, Cilt: 8 Sayı: 3, 228 - 236, 31.12.2023

İbrahim Göv

https://doi.org/10.46578/humder.1397261

Öz

Bu çalışmada, aerodinamik analiz kullanılarak bir arabaya etki eden sürükleme kuvveti incelenmiştir. Analizde genel bir araba modeli kullanılmıştır. Bir araç hareket ederken havanın oluşturduğu dirençten kaynaklı oluşan sürükleme kuvvetine maruz kalmaktadır. Sürükleme kuvveti bağıl harekete karşı bir dirence neden olur. Dolayısıyla aracın yakıt tüketimini doğrudan etkiler. Analizler, araçların izin verilen maksimum hız limiti olan 130km/s’de yapılmıştır. Yan camların açık veya kapalı olma durumlarında sürükleme kuvvetinin nasıl etkilendiği araştırılmıştır. Çalışmalar, araçta oluşan sürükleme kuvvetinin ön camlar açıldığında %2’ye kadar, arka camlar açıldığında %4’e kadar olumsuz etkilendiğini göstermektedir.

Anahtar Kelimeler

Araba Camı, Aerodinamik analiz, Sürükleme kuvveti

Aerodynamic Effect of Car Glass

Öz

In the present work, the drag force acting on a car was examined using aerodynamic analysis. A general car model was used in the analysis. While a vehicle moves, it is exposed to the drag force caused by the resistance created by the air. The drag force causes resistance to relative motion. Therefore, it directly affects the fuel consumption of the vehicle. The analyses were made at 130km/h, which is the maximum allowed speed limit of the vehicles. It was investigated how the drag force is affected when the side windows are open or closed. Studies show that the drag force generated on the vehicle is negatively affected by up to 2% when the front windows are opened and by up to 4% when the rear windows are opened.

Anahtar Kelimeler

Car glass, Aerodynamic analysis, Drag Force

Kaynakça

• T. L. Holst, Computational Fluid Dynamics Uses in Fluid Dynamics/Aerodynamics Education. NASA Technical Memorandum, (1994) 108834.
• M. Beccaria, G. Buresti, Alberto Ciampa, Giovanni Lombardi, Wolfgang Gentzsch, Hans-Georg Paap, Andrea Vicere. High-performance road-vehicle optimized aerodynamic design: Application of parallel computing to car design. Future Generation Computer Systems, 15 (1999) 323–332.
• K. Kurec, M. Remer, J. Piechna, The influence of different aerodynamic setups on enhancing a sports car’s braking. International Journal of Mechanical Sciences, 164 (2019) 105140.
• S. Hetawala, M. Gophane, B.K. Ajay, Y. Mukkamala. Aerodynamic Study of Formula SAE Car. Procedia Engineering, 97 (2014) 1198–1207.
• E. Abo-Serie, E. Oran, O. Utcu, Aerodynamics Assessment Using Cfd for a Low Drag Shell Eco-Marathon Car. Journal of Thermal Engineering, 3: 6: 6 (2017) 1527–1536.
• İ. Göv, Rotor Spacing and Blade Number Effect on the Thrust, Torque, and Power of a Coaxial Rotor. El-Cezerî Journal of Science and Engineering, 7: 2 (2020) 487–502.
• İ. Göv and M. H. Doğru, Aerodynamic Optimization of NACA 0012 Airfoil. The International Journal of Energy & Engineering Sciences, 5: 2 (2020) 146–155.
• İ. Göv, Ü. Korkmaz, Comparison of Aerodynamic Performance of NACA 4412 and S809 Airfoil Profile. International Mechanical Engineering and Technologies Conference, (2016) 183–188.
• X. Yang, Z. Huang, L. Zhang, L. Li, and J. Niu, Analysis and matching of key aerodynamic parameters of the aerodynamic plate braking coach car. Mechanics Based Design of Structures and Machines, DOI: 10.1080/15397734.2023.2255660.
• M. H. Doğru, Investigation of Velocity Distribution and Turbulent Energy for the Different Tip Shaped Projectiles. Çukurova University Journal of the Faculty of Engineering and Architecture, 32: 3 (2017) 39–46.
• E. Coşkun and M. H. Doğru, Investigation of the hub diameter effect on propeller thrust. The International Journal of Materials and Engineering Technology, 5: 1 (2022) 43–47.
• M. Varki, E. Yeter, M. H. Doğru, Effect of Propellers Numbers and Horizontal Distance in Design of VTOL. The International Journal of Materials and Engineering Technology (Tijmet), 5:1 (2022) 23–7.
• C. Bayındırlı, The Analysis of The Effect of The Spoiler Structures on the Truck Trailer Vehicle to Coefficient Drag by Computational Fluid Mechanics. Journal of Polytechnic, 20: 2 (2017) 251–256.
• M. Ozel, E. Aygün, Y. E. Akansu, C. Bayindirli, M. Seyhan, The Passive Flow Control Around a Truck-Trailer Model. International Journal of Automotive Engineering and Technologies, 4: 4 (2015) 185–192.
• C. Bayindirli, Y. E. Akansu, M. S. Salman, D. Colak, The Numerical Investigation of Aerodynamic Structures of Truck and Trailer Combinations. International Journal of Automotive Engineering and Technologies, 4: 3 (2015) 139–145.
• M. Seyhan and E. Fırat, Aerodynamic drag reduction on a bus model with upstream flat plate under crosswind conditions. NOHU J. Eng. Sci., 11: 4 (2022) 1163–1171.
• O. Yemenici and H. Kasap, Investigation of Aerodynamic of a Passenger Car with Triangular and Fin Wing Vortex Generators. OKU Journal of The Institute of Science and Technology, 6 (2023) 426–437.
• S. Cadirci, S. E. Ak, B. Selenbas and H. Gunes, Geometric Modifications to Minimize Lift Acting on A Simplified Front Windshield Wiper Blade. J. of Thermal Science and Technology, 36: 2 (2016) 103–109.
• C. Bayındırlı and M. Çelik, The Improving of Affecting Aerodynamic Drag Force to A Vehicle with Rear Deck Spoiler. AKU J. Sci. Eng., 19 (2019) 025903, 470–479.
• Y. İçingür and H. Solmaz, Determination of Drag Coefficients of Various Automobile Models in A Low Speed Wind Tunnel. J. Fac. Eng. Arch. Gazi Univ., 26: 2 (2011) 455–460.
• https://www.solidworks.com/product/solidworks-flow-simulation, 2023.
• https://www.cgtrader.com/items/141333/download-page, 2023.