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Table 3 Parameters applied in the heat pipe problem

From: Extending the persistent primary variable algorithm to simulate non-isothermal two-phase two-component flow with phase change phenomena

Parameters name Symbol Value Unit
Permeability K 10−12 [m 2]
Porosity Φ 0.4 [-]
Residual liquid phase saturation S lr 0.4 [-]
Heat conductivity of fully saturated porous medium \(\lambda _{\textit {pm}}^{S_{w}=1}\) 1.13 [W m −1 K −1]
Heat conductivity of dry porous medium \(\lambda _{\textit {pm}}^{S_{w}=0}\) 0.582 [W m −1 K −1]
Heat capacity of the soil grains c s 700 [ J kg −1 K −1]
Density of the soil grain ρ s 2600 [ kg m −3]
Density of the water ρ w 1000 [ kg m −3]
Density of the air ρ 0.08 [ kg m −3]
Dynamic viscosity of water μ w 2.938×10−4 [ Pa·s]
Dynamic viscosity of air \({\mu _{g}^{a}}\) 2.08×10−5 [ Pa·s]
Dynamic viscosity of steam \({\mu _{g}^{w}}\) 1.20×10−5 [ Pa·s]
Diffusion coefficient of air \({D_{g}^{a}}\) 2.6×10−5 [ m 2 s −1]
van Genuchten parameter P r 1×104 [ Pa]
van Genuchten parameter n 5 [-]