Mechanism Analysis and Practical Teaching Design of a Dual-Stage Cleaning System in a Flax Combine Harvester Based on CFD–DEM Coupled Simulation. Rev Facu Cien Agrar [Internet]. 2025 Jul. 1 [cited 2025 Nov. 27];57(1). Available from: https://revclinesp.com/index.php/revci/article/view/13