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EXPERIMENTAL OPTIMIZATION OF AERODYNAMIC DRAG COEFFICIENT OF A MINIBUS MODEL WITH NON-SMOOTH SURFACE PLATE APPLICATION


CIHAN BAYINDIRLI 1*, MEHMET CELIK 2
1. Nigde Omer Halisdemir Universty, Nigde Vocational School of Technical Sciences, 51100, Nigde, TĂŒrkiye
2. Karabuk University, Faculty of Engineering, 78050, Karabuk, TĂŒrkiye
* Corresponding author, email: cbayindirli@ohu.edu.tr

Issue:

JESR, Number 4, Volume XXVIII

Section:

Issue Nr. 4 - Volume 28(2022)

Abstract:

In this study non-smooth surface plate application was experimentally investigated to flow control around a scaled minibus model in a wind tunnel. 1/15 scaled minibus model and non-smooth surface plate were designed in SolidWorksÂź Cad program and produced in 3-D printer. It was focused on decrease of drag coefficient of vehicle with non-smooth surface plate by reducing flow separation. The experimental tests carried out 4 free stream velocities between the speed of 13.90-27.40 m/s and 2.62x105-5.18x105 Reynolds numbers. In wind tunnel tests Reynolds number independence was used to ensure dynamic similarity. The blockage rate was 10.68 %. It was determined that the using of non-smooth surface plate e on the front roof area of minibus model decreased to drag coefficient by an average of 1.03%. This reduction rate can decrease fuel consumption of vehicle about 0.5% at high speeds.

Keywords:

drag coefficient, wind tunnel, CAD, aerodynamic, non-smooth surface plate.

Code [ID]:

JESR202204V28S01A0004 [0005504]

Note:

DOI:

Full paper:

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