The energy transport equation based on enthalpy is given as follows:
\[\frac{\partial \rho h}{\partial t} + \div (\rho \u h) + \frac{\partial \rho K}{\partial t} + \div (\rho \u K) - \frac{\partial p}{\partial t} - \div (\alpha_{eff} \grad h) = \rho \u \cdot \vec{g} + f_{rad}(h) + \vec{S}_{\rho, h}\]The energy transport equation based on internal energy is given as follows:
\[\frac{\partial \rho e}{\partial t} + \div (\rho \u e) + \frac{\partial \rho K}{\partial t} + \div (\rho \u K) + \div (p \u) - \div (\alpha_{eff} \grad e) = \rho \u \cdot \vec{g} + f_{rad}(e) + \vec{S}_{\rho, e}\]where:
Property | Description |
---|---|
\(t\) | Time |
\(\rho\) | Density |
\(h\) | Enthalpy |
\(e\) | Internal energy |
\(\u\) | Velocity |
\(K\) | Kinetic energy |
\(p\) | Pressure |
\(\alpha_{eff}\) | Effective thermal diffusivity |
\(\vec{g}\) | Gravitational acceleration |
\(f_{rad}\) | Radiation function |
\(\vec{S}\) | Source term through fvOption
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