Conjugate Heat Transfer: Heated Fin Introduction
This tutorial incorporates both multi-region conjugate heat transfer and natural convection in a Simcenter STAR-CCM+ simulation.
The starting point for this tutorial is a one-cell-thick hexahedral grid representing a solid fin within a rectangular enclosure containing air, as shown in the Figure below. Built with pro-STAR, the grid includes a non-conformal grid interface between the fin and surrounding air. The file containing grid data also includes information about the boundary types present in the problem.

The three-dimensional grid is converted to a two-dimensional one and also scaled to the appropriate size before being used for the analysis. All conditions and properties are defined using the Simcenter STAR-CCM+ GUI and solved using the coupled solver. The results are displayed using the post-processing tools available in Simcenter STAR-CCM+.
The analysis includes the following heat transfer modes:
- Conduction in the solid fin.
- Diffusion and natural convection in the surrounding fluid.
Radiation effects are not included as part of this analysis.