Sinda is a network-based thermal solver. It is used for space-thermal (i.e satellite) as well as aerospace and electronics industries.
scFLOW is a capable and highly-parallelizable CFD package for Aerodynamic models. It is especially good at modelling moving geometry, whether as rigid bodies or coupled to FEA models. scSTREAM uses a structured cartesian mesh for faster solving on specific types of models.