Construction of streamlines for the potential flow around a cylinder Plot the streamlines for the flow around a cylinder using the information in Example 4.3-1 by the following procedure: 

(a) Select a value of ψ = C (that is, select a streamline). 

(b) Plot Y = C + K (straight lines parallel to the X-axis) and Y = K(X² + y²) (circles with radius 1/2K, tangent to the X-axis at the origin). 

(c) Plot the intersections of the lines and circles that have the same value of K. 

(d) Join these points to get the streamline for ψ = C. Then select other values of C and repeat the process until the pattern of streamlines is clear.