The software considers flow pressure, generated by SolidWorks Flow Simulation, and thermal effects for buckling studies. Slender parts subjected to temperature rise, like electronic components, can buckle due to restrained expansion. For thermal effects, you can specify a uniform temperature rise, assign different temperatures to different regions in the model, or import a temperature profile from a thermal study.
When using the Input temperature option, make sure to specify temperatures on components or shells. Specifying temperatures on the boundary only may not be practical. You may need to create and solve a thermal study first to compute temperatures at all nodes.