Question

The stagnation pressure can be visualized as the pressure we feel when we ride along the gas molecules at the local flow velocity.

(a) False

(b) True

I got this question in an interview for job.

This intriguing question comes from Definition of Total Stagnation Conditions topic in section Compressible Flow – Preliminary Aspects of Aerodynamics

Answer 1

Right option is (a) False

Easy explanation: The gas molecules have random motion in the flow. If we visualize ourselves as riding at the local flow speed, we feel the static pressure. Contrary to this, the pressure felt at the point of zero velocity is the stagnation pressure.