2.2 Isotropic linear material for moisture transport – IsoLinMoisture

Linear isotropic material model for moisture transport problems described by the linear diffusion equation4

 ∂h
k---= ∇ ⋅(c∇h )
  ∂t
(272)

where h is the pore relative humidity (dimensionless, between 0 and 1), k is the moisture capacity [kg/m3], and c is the moisture permeability [kg/ms]. The model parameters are summarized in Tab. 67.




Description

Linear isotropic material for moisture transport



Record Format

IsoLinMoistureMat num(in) # d(rn) # perm(rn) # capa(rn) #

Parameters

- num material model number

- d material density

- perm moisture permeability

- capa moisture capacity

Supported modes

_2dHeat




Table 67: Linear isotropic material for moisture transport - summary.