1.A 4-m-long, 6-cm-diameter cylinder placed normal to the flow is used to measure the velocity of an air stream. If a force of 50 N is measured, the air velocity is nearest (for air use v = 1.5 x 10^-5 m2/s, and roe= 1.2 kg/m3
2.The velocity field of a flow is given by V = x2 y i - x y2 j ft/s, where x, y, and z are in ft. Does the flow satisfy continuity? Is the flow irrotational? Determine the stream function.
3.The stream function for a certain flow is ? = x3 y3. Is the flow irrotational? Does the flow satisfy continuity?