ENH: fvOptions: refactor and extend effectivenessHeatExchangerSource

Summary

• rename effectivenessHeatExchangerSource -> heatExchangerSource
• introduce submodels:
  • effectivenessTable (previous behaviour)
  • referenceTemperature
• the referenceTemperature submodel uses a reference temperature which is either a scalar or calculated from a 2D interpolation table in order to calculate the heat exchange.
• the following figure shows the verification level of the comparisons between the original and refactored referenceTemperature modules in terms of average temperature.

Metadata

• EP1903
• diligently reviewed and tested by @Tobi (thanks Tobi)
• see v2212/01-heatExchangerSource for a test case