Investigation of effect of vehicle grilles on aerodynamic energy loss and drag coefficient

Year 2018, Volume: 2 Issue: 4, 190 - 203, 31.12.2018

Ahmet Yıldız , Beşir Dandıl

https://doi.org/10.30521/jes.461133

Cited By: 2

Abstract

In this study, the effects of grilles in a vehicle on the aerodynamic
drag coefficient and energy loss have been investigated. For this purpose,
grilles have been placed horizontally to the front of the vehicle. Firstly, the
aerodynamic drag coefficient and aerodynamic energy loss of the vehicle model
without grilles have been determined numerically. Then, the aerodynamic loss
coefficient and the aerodynamic energy loss of the vehicle model with grilles
have been determined. Thus, the effect of the grilles placed in the front of
vehicle on aerodynamic resistance and energy loss is compared to the vehicle
model without grilles. For all estimates, the vehicle models have been modeled
in SolidWorks software. ANSYS-Fluent software has been used for numerical analysis
for the modeled vehicles. It has been determined that the grilles placed in the
front of vehicle increased the aerodynamic drag coefficient of the vehicle and
thus the aerodynamic energy loss of the vehicle increased. Thus, it has been
shown that it is possible to reduce a certain extent the additional aerodynamic
losses in the vehicle by approaching the grilles designs closer to the vehicle
model without grilles.

Keywords

Vehicle, Aerodynamic drag coefficient, Energy loss, Grille, Computational fluid dynamics

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