Governing equations on differential form: Difference between revisions
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==== Enthalpy Formulation ==== | ==== Enthalpy Formulation ==== | ||
<math display="block"> | |||
h=e+\frac{p}{\rho}\Rightarrow \frac{Dh}{Dt}=\frac{De}{Dt}+\frac{1}{\rho}\frac{Dp}{Dt}+p\frac{D}{Dt}\left(\frac{1}{\rho}\right) | |||
</math> | |||
with <math>De/Dt</math> from Eqn. \ref{eq:governing:energy:non:b} | |||
<math display="block"> | |||
\frac{Dh}{Dt}=\dot{q} - \cancel{p\frac{D}{Dt}\left(\frac{1}{\rho}\right)} +\frac{1}{\rho}\frac{Dp}{Dt}+\cancel{p\frac{D}{Dt}\left(\frac{1}{\rho}\right)} | |||
</math> | |||
<math display="block"> | |||
\frac{Dh}{Dt}=\dot{q} + \frac{1}{\rho}\frac{Dp}{Dt} | \frac{Dh}{Dt}=\dot{q} + \frac{1}{\rho}\frac{Dp}{Dt} | ||
</math> | |||
==== Total Enthalpy Formulation ==== | ==== Total Enthalpy Formulation ==== | ||
