Q269
The pressure co-efficient is the ratio of pressure forces to __________ forces.
A.
Viscous
B.
Inertial
AnswerC.
Gravity
D.
Surface tension
Answer: Option B
Solution
Answer: Option B
Solution:
The pressure coefficient is the ratio of pressure forces to inertial forces. In fluid mechanics, the pressure coefficient is a dimensionless quantity that relates the pressure at a certain point to the free stream dynamic pressure. Inertial forces are associated with the motion and acceleration of fluid particles. Therefore, in this context, the correct option is Option B: Inertial.