Abstract
Based on spray cooling technology, a new high-integrated subarray cooling plate with multi-nozzles is presented for thermal control of active phased array radar (APAR) with high heat flux density. Firstly, by building a three-dimensional heat transfer and flow model, the simulation work was performed to evaluate both thermal control performance of presented cooling plate for APAR. Then, a special experimental thermal control system for the new cooling plate was established to investigate the thermal performance of presented cooling plate under both static state and vibrative state are investigated. The results showed that the nozzles in the cooling plate got high uniformity in pray characteristics. And by using the new cooling plate, the temperature rise of heat source could be controlled below 43°C with heat flux density of 323.3 W/cm2. Also, the temperature rise of heat source under vibrant state was lower than the static state.
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