Subject
Aerodynamics is the study of gas molecules as they flow around objects. Its greatest benefit is its inducement of lateral motion in airfoils; either up (lift) in aircraft wings or down (force) in vehicle spoilers.
An airfoil achieves lateral movement by altering the air velocity over two opposite faces. The faster the air travels, the lower its pressure.
Uplift is induced in an aircraft wing, due to the faster air travelling over its upper surface, lifting the aircraft off the ground.
Downforce is induced in a vehicle spoiler for the opposite reason; forcing the vehicle into the ground and therefore increasing frictional grip between its tyres and the road surface.
Whilst these calculations are relatively straightforward once they are understood, they can be a little confusing to the uninitiated.
Aerodynamics provides a userfriendly solution for those with a limited knowledge of the subject, but with a need.
Calculator
The aerodynamics calculator determines the dimensional properties of both highlift and lowdrag airfoil sections including the expected 'angle of attack' that will result in zerolift, and the expected liftforce when the angle of attack is zero.
Aerodynamics also calculates the performance characteristics of an airfoil at various nonzero angles of attack for both uplift and downforce applications.
Whilst both airfoil performance calculation options are 'standalone', they allow for the automatic transfer of input data from the dimensional calculation options if preferred.
For help using this calculator see Technical Help
Aerodynamics Calculator  Options
HighLift Airfoil
This calculation option is for the dimensional aspects of a highlift airfoil.
You enter 
and the aerodynamics calculator will provide: 


chord length

airfoil aspect ratio

maximum camber

upper surface radius

length of upper flat tail section

height of upper flat tail section

upper surface length

angle of attack that gives an horizontal underside

angle of upper surface at leading edge

angle of upper surface radius

average air pressure on upper surface

average air pressure on lower surface

pressure differential

static pressure

dynamic pressure

upper surface air velocity

lower surface air velocity

velocity ratio

lift force

angle of attack for zero lift

LowDrag Airfoil
This calculation option is for the dimensional aspects of a lowdrag airfoil.
You enter 
and the aerodynamics calculator will provide: 


maximum camber

airfoil aspect ratio

upper surface radius

length of upper flat tail section

height of upper flat tail section

upper surface length

angle of upper surface at leading edge

angle of upper surface radius

average air pressure on upper surface

lower surface radius

length of lower flat tail section

height of lower flat tail section

maximum airfoil thickness

lower surface length

angle of lower surface at leading edge

angle of lower surface radius

average air pressure on lower surface

pressure differential

static pressure

dynamic pressure

upper surface air velocity

lower surface air velocity

velocity ratio

lift force

angle of attack for zero lift

Airfoil Performance
This calculation option is for the performance aspects of an airfoil when fitted to an aircraft.
You enter 
and the aerodynamics calculator will provide: 


induced angle of attack

effective angle of attack

leading edge to aerodynamic centre

centre of pressure to aerodynamic centre

lift force coefficient

drag force coefficient

pitch moment coefficient

roll moment coefficient

yaw moment coefficient

lift force

drag force

normal force

tangential force

resolved force

pitch moment

roll moment

yaw moment

induced drag coefficient

induced drag force

downwash velocity of the air

effective velocity

Spoiler Performance
This calculation option is for the performance aspects of a spoiler when fitted to an vehicle.
You enter 
and the aerodynamics calculator will provide: 


induced angle of attack

effective angle of attack

leading edge to aerodynamic centre

centre of pressure to aerodynamic centre

down force coefficient

drag force coefficient

pitch moment coefficient

roll moment coefficient

yaw moment coefficient

downforce

drag force

normal force

tangential force

resolved force

pitch moment

roll moment

yaw moment

induced drag coefficient

induced drag force

upwash velocity of the air

effective velocity

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