Abstract A conjugate heat and mass transfer model was implemented into a commercial CFD code to analyze the convective drying of corn. The Navier–Stokes equations for drying air flow were coupled to diffusion equations for heat and moisture transport in a corn kernel during drying. Model formulation and implementation in the commercial software is discussed. Validation simulations were conducted to compare numerical results to experimental, thin-layer drying data. The model was then used to analyze drying performance for a compact, crossflow dehydrator. At low inlet air temperatures, the drying rate in the compact dehydrator matched the thin-layer drying rate. At higher temperatures, heat losses through the external walls resulted in temperature and moisture variations across the dehydrator.

中文翻译：

---

用于预测紧凑型错流脱水器中薄层干燥均匀性的共轭传热和传质模型

摘要 将共轭传热传质模型应用到商用 CFD 代码中，以分析玉米的对流干燥。干燥空气流的 Navier-Stokes 方程与干燥过程中玉米粒中热量和水分传输的扩散方程相结合。讨论了商业软件中的模型制定和实现。进行了验证模拟以将数值结果与实验薄层干燥数据进行比较。然后使用该模型分析紧凑型错流脱水机的干燥性能。在低入口空气温度下，紧凑型脱水器中的干燥速率与薄层干燥速率相匹配。在较高温度下，通过外壁损失的热量会导致整个脱水器的温度和湿度发生变化。