The pressure at large distances from the cylinder is uniform and given by p0.
Deploying Bernoulli's equation between the points at infinity and on the boundary of the cylinder,
 | (23.9) |
Hence,
 | (23.10) |
From Eqs (23.9) and (23.10) we can write
 | (23.11) |
The lift may calculated as
 | |
or,  | |
 | |
 | |
 | (23.12) |
The drag force , which includes the multiplication by cosθ (and integration over 2π) is zero.
- Thus the inviscid flow also demonstrates lift.
- lift becomes a simple formula involving only the density of the medium, free stream velocity and circulation.
- in two dimensional incompressible steady flow about a boundary of any shape, the lift is always a product of these three quantities.----- Kutta- Joukowski theorem
