Air flows past an object in a pipe of 2-m diameter and exits as a free jet as shown in Fig. P5.129. The velocity and pressure upstream are uniform at 10 m/s and 50 N/m2s, respectively. At the pipe exit the velocity is nonuniform as indicated. The shear stress along the pipe wall is negligible.
(a) Determine the head loss associated with a particle as it flows from the uniform velocity upstream of the object to a location in the wake at the exit plane of the pipe.
(b) Determine the force that the air exerts on the object.