Microjet Cooling Analysis
Fall 2021
For Thermal Fluid Systems II, I analyzed the effectiveness of microjet electronic cooling using COMSOL Multi-physics simulations.
Simulation Setup
I wanted to investigate a cooling method that used water to cool the surface of electronic components. I found multiple published papers describing and validating microjet cooling, and I made a simulation based on the system parameters given in these studies. I made an inverse geometry (representing the space the water would occupy) in SOLIDWORKS, based on dimensions given in a paper. I imported this into COMSOL and defined first a velocity then a temperature study.
Velocity and Temperature Studies
A large component of this project was learning to optimize simulation accuracy and solution time. I initially had difficulty finding meshes that were fine enough to be accurate but did not take multiple hours to solve. I was using a laptop to run the simulations, and in the future I would try to use a computer with faster processing. For the velocity study, I chose a turbulent model to get more accurate results, but for the temperature study, I used a laminar model, which resulted in significant inaccuracies.
