Thermal volume (3D) / face (2D) region

Introduction

The volume (in 3D) / face (in 2D) regions are the material regions used to model the massive regions in the study domain.

Material regions (massive regions)

Material massive regions enable the modeling of the material media (with material). The physical properties of a medium are the same as the properties of the material associated with the corresponding region.

A massive region … enables the modeling … It is defined by …

conducting

( + heat source q)

of a conducting medium* (thermal conductivity k volumetric heat capacity ρCp)

a material* with: thermal conductivity k

volumetric heat capacity ρCp

with possibly a heat source (uniform or space dependent)

a thermal power :

total value (in W) or

volume density (in W/m3) (formula with spatial quantities or formula with input/output parameters)

Note: * Concerning the properties of the conducting medium:
• for a Steady State Thermal application: only the thermal conductivity k is necessary

• for a Transient Thermal application: the thermal conductivity k and the volumetric heat capacity ρCp are necessary

Expression of heat source

In the case, where a heat source exists in the region, this one can be expressed in various ways.

The thermal power of heat source can be expressed by:

• a total value (in W)
• a volume density (in W/m3):
• uniform: constant value or formula with input/output parameters
• space dependent: formula with spatial quantities