# Post-processing quantities

## Introduction

The post-processing quantities are of two types:

- local quantities, analyzed in all points of the study domain,
- global quantities*, resulting from an integration, analyzed over the entire study domain or on a part of this domain.

Note: * In the presence of symmetries and/or periodicities these quantities are computed
for the part of the device represented in the finite elements domain.

## Usual quantities

Usual local quantities available are presented on the table below.

Usual quantities |
Flux formula |
Flux Unit | Explanation | Application | ||
---|---|---|---|---|---|---|

2D plane | 2D axi | 3D | ||||

Temperature | Temp(Tkelvin) | K | ||||

Temperature (gradient) | mGradT | K/m | ||||

Heat capacity (volume):
ρC_{P} |
RhoCp | J/(m^{3} .K) |
||||

Thermal conductivity: k | Kth | W/(m.K) | ||||

Thermal flux (surface density): | dFluxTh | W/m^{2} |
or * |

## Advanced use

Usual local quantities available in advanced use are presented on the table below.

Quantities (advanced use) |
Flux formula | Flux Unit | Explanation | Application | ||
---|---|---|---|---|---|---|

2D plane | 2D axi | 3D | ||||

Temperature (Kelvin): TKelvin | TKelvin | K | ||||

Temperature (Celsius): TCelsius | TCelsius | °C | TCelsius = TKelvin -273.15 | |||

Heat (volume density): q | dHeatV | W/m^{3} |
||||

Heat (surface density): q | dHeatS | W/m^{2} |
||||

Heat (line density): q | dHeatL | W/m | ||||

Heat transfer (convection coefficient): h | Hconv | W/(m^{2}.K) |
||||

Hconv2s | (on both sides, for regions with double heat exchange) | |||||

Heat transfer (radiation coefficient): ε | Hrad | W/(m^{2}
.K^{4}) |
||||

Hrad2s | (on both sides, for regions with double heat exchange) | |||||

Ambiante temperature (for convectif exchange) |
Tamb | K | ||||

Tamb2s | (on both sides, for regions with double heat exchange) | |||||

Heat transfer (surface density): | dExchangeS | W/m^{2} |
* |

Note: * If the local radiation is applied, the second term is to replace by the thermal
flux expression given in the part 1.1.6 of this document.

## Global quantities

Global quantities are not directly available. They can be calculated by integration (See § Explanation of results)