1916Civil EngineeringMedium
In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is________?
A22.5 m/sec
B33 m/sec
C90 m/sec
D40 m/sec
Correct answer
D. 40 m/sec
Explanation
The correct answer is 40 m/sec.