[case] VapourDiffusionPMQ

The Penman-Millington-Quirk (PMQ) Vapour diffusion model.

The model was presented in [7]

The vapour diffusion can be described by [20], [21], [7]

$$D_v=2.16\cdot 10^{-5} \left(\frac{T}{273.15}\right)^{1.8} D_{vr},$$

where $D_{vr}$ is the the relative diffusion coefficient, and $T$ is the temperature.

In the PMQ type, $D_{vr}$ takes the form of [7]

$$D_{vr}=0.66 \phi (1 - S_L )^2,$$

with $\phi$, the porosity, $S_L$, the water saturation, $0.66$ the tortuosity constant.

Child parameters, attributes and cases

Additional info

From MaterialLib/MPL/Properties/VapourDiffusion/CreateVapourDiffusionPMQ.cpp line 30

• Expanded tag path: NONEXISTENT.property.VapourDiffusionPMQ
• Go to source code: → ogs/ogs/master

Used in the following test data files

Used in no end-to-end test cases.