Thin liquid flow-through core with machined flow channels

Liquid Flow-Through (LFT) cooling, where coolant passes directly through the core of line replaceable modules, is a key technology for enabling high-density, low-cost avionics for military applications. A key component for implementing reliable LFT cooling is the module core itself. This paper describes the development of a very thin core with machined flow channels. It summarizes the benefits of the core's design including improved producibility, enhanced thermal performance, simplified thermal analysis and ultimately reduced system operating costs. This paper describes trade-offs conducted to develop the core's design. Thermal performance was optimized while meeting pressure drop and operating pressure requirements.