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Aerodynamics is a sub-field of fluid dynamics which is a
study of how gases interact with moving bodies.
Applications can be so vast ranging from
Automobile( aero planes, cars ,trucks, ships etc..)
Architecture( bridges, buildings etc..)
Numerical weather prediction
Study of the aerodynamics of road vehicles
reducing Drag (attain high speeds)
minimizing noise emission,
preventing undesired lift
Improve stability at high speeds and
produce down force .
• The term down force
describes the downward
pressure created by the
aerodynamic characteristics of
• It allows it to travel faster
through a corner by holding
the car to the track or road
• It is the vertical component of
the force acting downwards,
which arises due to the airflow
over and below the car’s
The front wing or the spoiler is the first
part of the car that makes contact with
It affects the airflow in the full length of
the car and even tiny changes can have
huge effects on the overall performance.
Proves 42% of total down force
The rear wing helps glue
the rear wheels to the
track, but it also can
hugely increases drag (air
residence against the body
of the car). But designers
are constantly working to
use as little angle of
incidence on the rear wing
as possible without
The diffuser or floor, is
designed to ensure the
smoothest exit for the air
that is flowing under the
car. Designers come up
with a huge variety of
because the quicker the air
exits, the more down force
the car generates, and the
higher the grip will be.
Wind tunnel testing
Wind tunnels operate below the
speed of sound and the airstream is
created by large motor-driven fans.
At velocities near or above the speed
of sound, the airstream is created
either by releasing highly compressed
air from a tank at the upwind end of
the tunnel testing area, or by allowing
air to rush through the tunnel into a
previously created vacuum tank at its
ANSIS, CATIA, ALIAS STUDIO
ANALYZE CHANGES DURING DESIGN PHASE AND DEVELOPMENT
REDUCES TIME TO DEVELOP OPTIMAL DESIGN
ABLE TO STUDY INDIVIDUAL ELEMENTS MORE EFFECTIVELY
improves fuel economy.
stability at high speed improving the traction especially at
corners to allow variable cornering speed.
Improves Aesthetic value
Understeer causes the car to go straighter than the
trajectory that the driver is trying to take.
Oversteer is when the rear wheels of a car do not track
behind the front wheels. Instead, they tend to slide out
towards the outside of the turn. This can easily cause a car
“ENHANCEMENT OF AERODYNAMIC
PERFORMANCE OF A FORMULA-1 RACE CAR
USING ADD-ON DEVICES”, B. N. Devaiah, S.
Umesh, SASTECH journal