Abstract

This study analyzes the heat transfer characteristics of multi-slot nozzles air jets with velocity difference between the adjacent jets. The research content includes the influence of thermal uniformity analysis and heat transfer capacity owing to the existence of adjacent jets. The multi-slot nozzles experiment was carried out under the specified conditions. The heat transfer uniformity of multi-slot nozzles jet heat transfer was improved compared with that of a single-nozzle jet heat transfer. Moreover, the closer the Reynolds number of the adjacent jets, the better the heat transfer uniformity. The existence of adjacent jets would relatively inhibit the heat transfer capacity. Through a single-slot nozzle experiment, an empirical formula for heat transfer characteristics of a single-nozzle jet on this experimental platform is obtained. The empirical formula of multi-slot nozzles is obtained by extending the empirical formula of single nozzle. The accuracy of multi-slot nozzles empirical formula is verified through a multi-nozzle confirmatory experiment, and the application scope of the empirical formula is relatively widened.

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