ABSTRACT
As in the case of incompressible flows, in applying the above equation to a lifting configuration, the surface should surround both the body and the wake. The contribution of the wake is obtained by taking the limit as the two sides of the surface surrounding the wake approach each other. Note that, on
A(0010n)= 0 (eqn (19)): thus, the contribution of the wake is given by an integral over the surface of the wake in terms of A4, its tangential derivatives, and its time derivative. The boundary condition on the wake is that the potential discontinuity AO remains constant following a wake point (eqn (20)).
