Write down the integrals clearly.

Velocity profiles are measured at the upstream end $($surface $1)$ and at the

downstream end $($surface $2)$ of a rectangular control volume, as shown in

Figure. If the flow is incompressible, two$-$dimensional. and steady, what are

the drag and lift coefficients for the airfoil? The vertical dimension H is $0\mathrm{.}1$ c

and The pressure is $P_{}$ is constant over the entire surface of the control

volume. The boundary $4$ is a streamline.