Prandtl-Glauert Correction
Apply the subsonic Prandtl-Glauert compressibility correction to lift or pressure coefficients.
Corrected CL
0.72 CL
1.441x incompressible CL
Beta factor
0.69
sqrt(1 - M^2) at M 0.72
Corrected Cp
-0.86
-0.600 scaled by 1/beta
Compressibility scaling
The Prandtl-Glauert factor compresses the disturbance field and amplifies small-disturbance coefficients.
1/beta = 1.441
Coefficient scaling
C = C0 / beta
Lift coefficient
0.500 to 0.720
+0.220 CL from compressibility gain
Pressure coefficient
-0.600 to -0.865
-0.265 Cp after 1/beta scaling
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