In this paper, a computational fluid dynamics (CFD) study is carried out in an effort to design and optimize the cabin geometry and its various parts for drag reduction that include the side deflectors, the mirrors and the sun visor. For the validation of computational results, an experimental investigation using a 1/5 scale truck model has been carried out in a wind tunnel. The aerodynamic force as well as the surface-pressure point measurements carried out at selected wind speeds. The flow visualizations using smoke and oil were also performed. With the experimental results, the basic characteristics of flow over the cabin geometry (including the flow separation locations) are compared with the CFD results. The both steady and unsteady CFD simulations are performed. The comparison of steady/unsteady results reveals that the time-averaged unsteady flow characteristics are practically the same as the steady calculations for design purposes. In addition to CFD simulations involving the actual (real) truck cabin geometry, for the optimization of the specific cabin accessories, (e.g., side deflectors and mirrors), a generic truck model is also used for CFD analyses. The optimized side deflector geometry (e.g., the ratio of the air inlet and outlet area), and the optimum form of the mirrors for drag reduction have been realized by numerical investigations.
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ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis
July 12–14, 2010
Istanbul, Turkey
Conference Sponsors:
- International
ISBN:
978-0-7918-4917-0
PROCEEDINGS PAPER
An Aerodynamic Design and Optimization of a Heavy Truck for Drag Reduction
Bugra Selenbas,
Bugra Selenbas
Istanbul Technical University, Istanbul, Turkey
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Hasan Gunes,
Hasan Gunes
Istanbul Technical University, Istanbul, Turkey
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Kenan Gocmen,
Kenan Gocmen
Temsa R&D and Technology Inc., Kocaeli, Turkey
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Uygar Bahceci,
Uygar Bahceci
Temsa R&D and Technology Inc., Kocaeli, Turkey
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Bertan Bayram
Bertan Bayram
Temsa R&D and Technology Inc., Kocaeli, Turkey
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Bugra Selenbas
Istanbul Technical University, Istanbul, Turkey
Hasan Gunes
Istanbul Technical University, Istanbul, Turkey
Kenan Gocmen
Temsa R&D and Technology Inc., Kocaeli, Turkey
Uygar Bahceci
Temsa R&D and Technology Inc., Kocaeli, Turkey
Bertan Bayram
Temsa R&D and Technology Inc., Kocaeli, Turkey
Paper No:
ESDA2010-24482, pp. 121-129; 9 pages
Published Online:
December 28, 2010
Citation
Selenbas, B, Gunes, H, Gocmen, K, Bahceci, U, & Bayram, B. "An Aerodynamic Design and Optimization of a Heavy Truck for Drag Reduction." Proceedings of the ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 3. Istanbul, Turkey. July 12–14, 2010. pp. 121-129. ASME. https://doi.org/10.1115/ESDA2010-24482
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