Question:-
The critical value of mach number for a subsonic airfoil is associated with sharp increase in drag due to local shock formation and its interaction with the boundary layer a typical value of this critical mach number is of the order of
Option (A)
0.4 to 0.5
Option (B)
0.75 to 0.85
Option(C)
1.1 to 1.3
Option(D)
1.5 to 2.0
Correct Option:
(B)
question-answer-faq-3132