Jet Flow Field Calculation & Mechanism Analysis On Hot-Air Drying Oven Based On Rng K-E Model

In order to gain the performance characteristics and technical parameters in drying processing, the paper describes the heat and mass transfer mechanism of solvent which dries and volatilizes during gravure printing, and establishes multi-beam air impinging drying model for suspended hot air drying device; based on standard RNG k-e model, fluid numerical simulation & calculation are performed for drying oven; the paper extracts hot air fluctuation range and features of velocity on prints surface through sections technique, then discusses the uneven mechanism by combining geometric structure; the research complicates hot air trace in different locations of drying oven; the reasons for turbulence and the influence on drying effect are analyzed. The research on structural characteristics of the impinging jet flow field provides evidence and support to drying system optimization and innovative design.