L14_A
●  11.3 Category of compressible flow
●  11.4 Isentropic flow of an idea gas-no heat transfer and frictionless
●  11.4.1 Effect of variation in flow cross-section area
●  11.4.2 Converging–Diverging Duct Flow

L14_B
●  11.4.1 Effect of variation in flow cross-section area
●  11.4.2 Converging–Diverging Duct Flow