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首页> 外文期刊>Drying technology: An International Journal >Convective Drying of Agitated Silica Gel and Beech Wood Particle BedsExperiments and Transient DEM-CFD Simulations
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Convective Drying of Agitated Silica Gel and Beech Wood Particle BedsExperiments and Transient DEM-CFD Simulations

机译：搅拌硅胶和山毛榉木颗粒床的对流干燥实验和瞬态DEM-CFD模拟

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摘要

With coupled discrete element (DEM)-computational fluid dynamics (CFD) simulations, drying processes can be simultaneously described on the system scale while resolving detailed subprocesses on the particle scale. In this contribution, DEM-CFD simulations are used to analyze the transient heat and mass transfer in mechanically agitated particle beds during drying. Results are compared to convective batch-drying experiments with silica gel and beech wood spheres and mixing effects are studied in detail. A good agreement with the measurements of both single-particle and particle bed drying is achieved by resolving heat and moisture transport three-dimensionally inside each particle.
机译：通过耦合离散元素（DEM）-计算流体动力学（CFD）模拟，可以在系统规模上同时描述干燥过程，同时解决粒度范围内的详细子过程。在此贡献中，DEM-CFD模拟用于分析干燥过程中机械搅拌颗粒床中的瞬态热和质量传递。将结果与硅胶和山毛榉木球的对流分批干燥实验进行了比较，并详细研究了混合效果。通过解决每个粒子内部三维的热和湿气传输问题，可以实现与单粒子干燥和粒子床干燥测量的良好一致性。

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