Backward Compatibility with Version 5.2

Several enhancements or bug fixes may require an update of the existing applications or induce a change in the results. Here is the list of the changes:

•

When Solar position is selected in External Radiation Source, the new option Update time from solver is selected by default. When loading an MPH file that was created before version 5.2a this option will be cleared. However, for the API, for time-dependent studies, it will be necessary to update the code to get the same behavior as in previous versions. In most cases, removing the t term in the Second field is the best option. Alternatively, clearing the Update time from solver option will ensure that the same behavior as before is obtained.

•

The crosswind stabilization of the heat transfer and fluid flow interfaces has been updated. In general, the update reduces the smoothing induced by the stabilization compared to previous version. In addition, when you use the Non-Isothermal Flow multiphysics coupling and the fluid is defined as incompressible, the uncoupled versions of the streamlines and crosswind stabilization are used.

•	Since Pair Thin Film and Pair Fracture are now pair features, their selection needs to be redefined.

•	The definition of the ht.feature.fc(RH.T,pA) function when Moist air fluid type is used in Fluid feature has been corrected. This change can affect the results in simulations where it is used.

•	The frame support has been enhanced to support moving mesh combined with deformed geometry in the same component.

•	The Prescribed Radiosity feature has been updated so that it no longer ignores the Temperature model input.

•	In surface-to-surface boundary features, the ambient temperature definition has been fixed when the Opacity Controlled and Defined ambient temperature on each side options are used simultaneously.