A. Entropy and flow velocity
B. Gradient of entropy and vorticity
C. Gradient of angular acceleration and enthalpy
D. Flow velocity and enthalpy
I have been asked this question during an interview.
I need to ask this question from Crocco’s Theorem topic in division Differential Conservative Equations for Inviscid Flow of Aerodynamics
Explanation: According to the Crocco’s theorem, there is a relationship established between vorticity, gradient of enthalpy and gradient of entropy.
V × (∇ × V) = ∇h0 – T∇s
Where, ∇ × V is the vorticity
∇h0 is gradient of total enthalpy
T∇s is gradient of entropy