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ρ (SI unit: kg/m3) is the solid density.
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Cp (SI unit: J/(kg·K)) is the solid heat capacity at constant pressure.
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k (SI unit: W/(m·K)) is the solid thermal conductivity (a scalar or a tensor if the thermal conductivity is anisotropic).
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u (SI unit: m/s) is the velocity field defined by the Translational Motion subnode when parts of the model are moving in the material frame.
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Q (SI unit: W/m3) is the heat source (or sink). Add one or several heat sources as separate physics features. See the Heat Source node.
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