The Line Body object defined as a Thermal Fluid model can be used to calculate the thermal fluid heat transfer between fluid and solid bodies. The ease of using this feature was shown here by simulating the convective heat transfer through the cooling passages of the turbine blade. A wide range of cross-sections are supported, see Line Bodies in the Mechanical User's Guide for more details.

When a solid region with a convective passage is included in an analysis, lower-order elements for the solid region should be used when modeling the passage with a Line Body. Using higher-order surface-effect elements can sometimes lead to an unrealistic temperature distribution.