2. A two-dimensional semi-infinite streamlined "body" symmetric with respect to its longitudinal axis is defined by the dividing streamline separating a source flow and a uniform stream. The source of strength m = 45m/s is placed at the origin of a Cartesian plane and, to give the body incidence with respect to the x-axis, the stream is defined by U = 15 m/s, V = 5 m/s. Given: mo Vc Uy, 2 XS m 2U a) Sketch the outer flow streamline pattern. Page 1 of 2 Ymax m 2U ...continued Calculate: b) The incidence angle of the body with respect to the x-axis. c) The distance from the leading-edge stagnation point to the origin. d) The thickness of the body at the origin (normal to its longitudinal axis). [4 marks] [2 marks] [7 marks] [7 marks]