Abstract: Taking the multi-functional curing barn as the research object, numerical simulation research was conducted using Fluent software based on the standard k-å turbulence model theory.The influences of key parameters such as air inlet width, distance between the tray and the side wall of the curing barn, and deflector inclination angle on the flow field were systematically analyzed, verifying the regulatory effects of different structural schemes on the stability of the internal flow field of the curing barn.The results showed that the optimal combination of structural parameters for the multi-functional curing barn was an air inlet width of 2.7 m and a distance of 300 mm between the tray and the side wall.After testing the deflector system with a width of 300 mm and a spacing of 200 mm, it was found that when the deflector inclination angle was 45°, the uniformity of the internal flow field of the curing barn reached its optimal state, allowing airflow to act uniformly on the material surface and significantly improving the drying effect.

Key words: Fluent, multi-functional curing barn, flow field, structural optimization