Simulation and analysis of the pneumatic recovery for side-cutting loss of combine harvesters with CFD-DEM coupling approach

A novel pneumatic recovery method was proposed to curb the problem of high losses caused by side-cutting in a rapeseed combine harvester header. The influence and material status changes on effect studied via CFD-DEM (computational fluid dynamic- discrete element method) coupling simulation. airflow action compared analyzed, composite determined. In addition, feeding rate explored, critical condition blockage device configured. As such, relationship model between air velocity constructed distribution ratio flow field under this optimized, had verified rationality series tests. average 92.95% achieved with application device, total loss header reduced 52.26%, which is great significance reducing harvesters improving operation performance machinery. research results can provide reference for design structure rape harvester. Keywords: rapeseed, harvester, loss, coupled simulation, DOI: 10.25165/j.ijabe.20221502.6267 Citation: Jiang T, Zhang M, Guan Z H, Mu S L, Wu C Y, Wang G, et al. Simulation analysis approach. Int J Agric & Biol Eng, 2022; 15(2): 117–126.