Investigation of the effect of the use of top deflectors on aerodynamic performance in vehicles with CFD analysis
Özet
Carbon-containing waste gases from vehicle exhausts are one of the main causes
of climatic disasters. This problem is tried to be solved by reducing the amount
of energy consumed by vehicles while they are in motion. To reduce fuel
consumption, it is necessary to reduce the effect of aerodynamic drag force,
which is the resistance on the solid surface in motion. It is known that high
aerodynamic drag force increases fuel consumption. Reducing aerodynamic drag
force is important not only for fuel consumption but also for wind noise and
roadholding. Heavy vehicles such as trucks have high drag forces due to the
width of their surface areas. However, this situation can be minimized with
changes to be made in vehicle designs. In this study, the effect of the use of top
deflectors on the drag force for trucks has been investigated. In this theoretical
study, separate calculations have been made for different vehicle velocities and
the results have been compared among themselves. In this study, which has been
carried out using the computational fluid dynamics method, k-e has been
preferred as the turbulence method. As a result, it has been concluded that the
use of top deflectors reduces drag force, which in turn reduces fuel consumption.
