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Avionics
Using thermofluid simulation to optimize liquid cooling of avionics power systems - Story
February 15, 2018
Liquid cooling for military signal processing offers advantages in high-power-density systems to dissipate heat at a higher rate than air-cooled systems and to transfer heat further away efficiently for thermal signature control. When using liquid-cooling systems, the challenge is to meet size, weight, and power (SWaP) goals while ensuring design for performance and reliability. A method is presented on how to model, characterize, and optimize the performance of cold-plate designs using 3-D computer-aided design (CAD)-embedded computational fluid dynamics (CFD) simulations to then immediately use this data in a system-level, fluid-dynamics simulation model of a full-pumped, liquid-cooling system. This 1-D/3-D CFD, model-based design approach enables earlier and more accurate evaluation of physical components.
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