In this tutorial, you used an electronics cooling study to identify what cooling components to include in a power supply design to ensure the board design is viable and the board components stay below their maximum temperature thresholds.
To resolve this question, you
Setup an Electronics Cooling study on a design with no cooling components
Added a heat sink on one regulator
Added another regulator and heat sink and reduced the power to the original regulator
Added a fan and created two studies, one where air is pushed into the enclosure and another where air is pulled out of the enclosure
Compared the various Simulation model studies to identify which modifications improved the outcome.
Maximum Threshold result for the model with 1. one heat sink, 2. an additional heat sinks and regulator, 3. an additional fan pushing air into the enclosure, 4. the fan pulling air out of the enclosure