Question 3 Inviscid, Incompressible fluids are commonly known as ideal flow. Figure 2 shows the two- dimensional flow of an ideal fluid with density 1000kg/m³ in the vicinity of the 90° corner and is described by the stream function: p = 4r? sin 20 a) By applying the stream function above, convert it to potential flow. b) Determine the pressure at point (2) if pressure at point (1) is 20x10³ N/m². What happens to the pressure at point (2) if the distance between point (2) and the 90° point is doubled? Compare your answer. (2) 05 m (1) Figure 2