# Advection-Conduction Properties

These are the properties of the Advection-Conduction model:

- advection-conduction
- conductivity-effective f
Effective conductivity.

- conductivity-fluid f
Fluid thermal conductivity.

- density-fluid f
Temperature-dependent fluid density.

- expansion f
Matrix linear thermal expansion coefficient. See Thermal-Stress Coupling for further information.

- expansion-fluid f
Fluid volumetric thermal expansion coefficient.

- gradient-x f (r)
*x*-component of the temperature gradient.

- gradient-y f (r)
*y*-component of the temperature gradient.

- gradient-z f (r)
*z*-component of the temperature gradient.

- specific-discharge-x f
*x*-component of specific discharge.

- specific-discharge-y f
*y*-component of specific discharge.

- specific-discharge-z f
*z*-component of specific discharge.

- specific-heat-effective f
Effective specific heat over matrix density.

- specific-heat-fluid f
Fluid specific heat.

**Key**- (r) Read-only property.
- This property cannot be set by the user. Instead, it can be listed, plotted, or accessed through FISH.

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