INDUCED DRAG COEFFICIENT
For finite wing aerodynamics is 3D
mindragas
Cpi he e 1
WING TIP VORTICES
The difference in span wise velocity on the upper and lower surfaces causes
distributed streamwise vortices to form along the wingspan
Downwash Effects
Angleofattackactually seen
byaerofoil is eff
D which
lifted argument
deff α α
INDUCED DRAG
Produced as a resultof having a
finite span
Di 25 of Dt at cruise
Winglets
ype.to n drag reduction
Relationship between Cpi and AR
Cpi is inversely proportional to AR
Di FER AR