Question

The Prandtl–Glauert rule gives the relation between

• A. viscous and inviscid flow
• B. compressible and incompressible flow
• C. supersonic and subsonic flow
• D. transonic and subsonic flow

Hint:

Used primarily to adjust lift and pressure coefficients in subsonic compressible flows.

Answer 1

The Correct Option is B

The Prandtl–Glauert rule corrects incompressible flow results to estimate compressible flow characteristics, especially in subsonic regimes.