16th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics (HEFAT-ATE 2022), Amsterdam, Netherlands, 8 - 10 August 2022, pp.793-1061
In this manuscript, heat transfer, fluid flow, and temperature distribution inside a large real scale autoclave used in aerospace industry are investigated using an accurate numerical method which is validated by experimental studies. The flow rate including the geometric characteristic of the fan, multiple reference frame, and sliding mesh motion are considered to achieve a good agreement with the experimental results. After performing mesh independency analysis, the steady and transient simulations are conducted with k-w SST turbulence model and compared to the experimental data. Owing to the complexity of the problem and size of the geometry, high performance computing (HPC) is employed. For the experimental determination of the heat transfer coefficient of the autoclave internal environment, lumped mass calorimeter technique is used for different conditions. It is proved that the suggested computational method is applicable to large autoclaves for modelling fluid flow and heat transfer. So, it is a powerful methodology for optimization of autoclaving process especially for aerospace applications.