The Conjugate Heat Transport (CHT) coupling method is the simplest solution method. In this approach, you already have a good knowledge of the battery, and you know the heat generation rate during its operation. In the thermal analysis, the heat source in the energy equation is specified explicitly.

Joule heating in passive conductive zones including battery tabs and busbar connectors can be considered. A single potential equation is solved in the passive zones to obtain the Joule heating. In summary, the following equations are solved in Fluent:

(19–1)

(19–2)

where

= electric conductivity of the passive material

= battery's heat generation source

The remaining nomenclature is the same as in MSMD Solution Method. The first term in the equation is the Joule heating term, which is only added in the passive conductive zones. The battery heat generation term is only added in the battery active zones.