Heat air and moisture development

This application is still in development (and don’t run yet). It has more features than feelpp_hm_heat_moisture, but is (for now) incompatible with it.

1. Usage

feelpp_hm_heat_moisture_2d --case <directory to model case> --mod-file <path to json file>

feelpp_hm_heat_moisture_3d --case <directory to model case> --mod-file <path to json file>

depending in which dimension the simulation is made.

2. Geometry

To make this application work correctly, there are some constraints on the geometry :

If we want to simulate in the room, at least one marker has to be named Air.

3. JSON file

{
    "Name":"model_name",           (1)
    "Models":
    {
        "heat":{},
        "moisture":{}
    },
    "Parameters":
    {
        "L_v":2.5e6,                (2)
        ...
    },
    "Materials":
    {
        "Omega_w":                  (3)
        {
            "physics":["heat"],     (4)
            "markers":["Wall"],     (5)
            "rho_m":650,            (6)
            ...
        },
        "Omega_r":                  (7)
        {
            ...
        }
    },
    "BoundaryConditions":
    {
        "T":                        (8)
        {
            "wall-int":             (9)
            {
                "Gamma_i":          (10)
                {
                    "expr":0        (11)
                }
            },
            "wall-ext":             (12)
            {
                "Gamma_e":
                {
                    "expr":0
                }
            }
        }
    },
    "InitialConditons":             (13)
    {
        "T":
        {
            "Expression":
            {
                "Omega_w":
                {
                    "expr":293.15
                },
                "Air":
                {
                    "expr":293.15
                }
            }
        }
    },
    "PostProcess":                  (14)
    {
        "Exports":
        {
            "fields":["T","phi","w"]
        }
    }
}json

1	Name of the model,
2	Parameters of the model. For HAM simulation those parameters are `L_v`, `h_i`, `h_e`, `h_m`, `h_mi`, `h_me`, `T_e`, `w_e`, `H`
3	Material associated to the room : the name has to be `Omega_w`
4	Physics of the material, can be `heat`, `moisture` or `heat-moisture` depending on what we want to simulate
5	Markers where the physic is applied
6	Parameters implied in the physic : In the wall, those parameters are : `rho_mCp_m`, `k`, `xi`, `D_w`, `delta_p`, `p_sat` In the room, those parameters are : `eta`, `rho_aCp_a`, `A_w`, `V_a`, `m_gen`
7	Material associated to the air : the name has to be `Omega_r`
8	Field on which the boundary condition is applied, can be `T` or `phi`
9	Boundary conditions on the border between the room and the wall (named $\Gamma_i$ in the description), the name of such a condition is `wall-int`
10	Markers of the geometry on where the condition is applied
11	Expression, not used in the program
12	Boundary conditions on the border between the room and the exterior (called $\Gamma_e$ in the description), the name is `wall-ext`
13	Initial conditions
14	Post process section

Here is a table of the name of the coefficients, and to which model they are associated :

Parameters: Those values have to be in the Parameters section.

Table 1. Parameters used in the application
Name	Symbol	Equation
$L_v$	`L_v`	moisture
$h_i$ , $h_e$ , $h_m$ ,	`h_i`, `h_e`, `h_m`	heat
$h_{mi}$ , $h_{me}$	`h_mi`, `h_me`	heat
$H$	`H`	heat
$T_e$	`T_e`	heat
$w_e$	`w_e`	moisture

Coefficients: Those values have to be in the Materials section

Table 2. Coefficients used in the application
Name	Symbol	Equation
$\rho_mc_m$ , $\rho_ac_a$	`rho_mCp_m`, `rho_aCp_a`	heat
$k$	`k`	heat
$w$	`w`	moisture
$\xi$	`xi`	moisture
$\eta$	`eta`	heat, moisture
$A_w$	`A_w`	heat, moisture
$V_a$	`V_a`	heat, moisture
$\dot{m}_\text{gen}$	`m_gen`	moisture