Simulating the aerodynamic characteristics of the bus models assembled in Vietnam

Abstract

This paper studies the aerodynamic characteristics of bus model
through the analysis of the distribution of speed and pressure.
Numerical investigations were conducted with the model. The bus’s
aerodynamic characteristics were simulated using Reynolds-averaged
Navier-Stokes (RANS) equations combined with Realizable k  
model and CFD software. The analysis results demonstrated timeaveraged velocity field, magnitude of the velocity and static pressure
magnitude of the flow fields around the bus model. The results
obtained from the study are presented through graphics and
calculation simulation value Cd, providingbetter understanding of
aerodynamic characteristics around bus model.The results also serve
as the basis for future studies on improving the bus exterior in order
to reduce aerodynamics forces and bus fuel consumption.