Find a closed body using 3 sources/sinks (the sign of the strength will determine which is which) located at (-0.7m, 0), (0, 0), (0.5m, 0), that give rise to stagnation points at (-1.0m, 0) and (1.0m, 0) in a uniform flow of 20 m/s.
a. write the stream function and velocity potential as a function of the three source/sink strengths.
b. write the expressions for the velocity components in terms of the three source/sink strengths.
c. using the fact that this is a closed body with known stagnation points, determine the strength of each source/sink
d. verify that the above are stagnation points.