Question

In the general transport equation, ϕ is the flow property. To get the energy equation out of this general equation, which of these variables cannot be used?

(a) v

(b) T

(c) h0

(d) i

I have been asked this question by my school principal while I was bunking the class.

My question is taken from Energy Equation in portion Governing Equations of Fluid Dynamics of Computational Fluid Dynamics

Answer 1

Correct choice is (a) v

The explanation: T, h0 and I represent temperature, total enthalpy and internal energy. These can be used to get the energy equation. Y-velocity component (v) cannot be used. It will result in the y-momentum equation.