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Table 1 Set of thermodynamic variables associated with each form of energy
Phenomenon | Generalized displacement | Generalized strain | Generalized stress |
|---|---|---|---|
Mechanics | ξ [m] | ε =(∇ ξ+∇Tξ)/2 | σ [Pa] |
Mechanical displacement | Linear strain | Cauchy stress tensor | |
Hydraulics | p w [Pa] | ∇p w [Pa.m-1] | M [kg.m-2.s-1] |
Water pressure | Hydraulic flow | ||
Thermics | T [K] | ∇T [K.m-1] | q [J.m-2.s-1] |
Temperature | Heat flow |