For simultaneously predicting the hydrodynamics and protein adsorption process in a liquid-solids fluidized bed (LSFB), a computational fluid dynamics (CFD) model is established by combining the two-fluid model (TFM) for the liquid-particles two-phase fluidization system with the $\overline{c^2}-{\epsilon }_c$ model for the turbulent mass transfer. In terms of hydrodynamics, the $k_l-{\epsilon }_l-k_p-{\epsilon }_p-\Theta$ equations are adopted to describe phases turbulence. The simulations of hydrodynamics using various drag models and different modelling parameters are conducted to test their sensitivity. Then for the adsorption process, the recently developed formulations of the $\overline{c^2}-{\epsilon }_c$ model are adopted to characterize rigorously the turbulent mass diffusion in LSFB. With the proposed model, the velocity field as well as the concentration field can be acquired. Simulated results are compared with the experimental data and a good agreement between them is found.

为了同时预测液固流化床（LSFB）中的流体动力学和蛋白质吸附过程，通过结合液-液两相流化系统的两​​流体模型（TFM），建立了计算流体动力学（CFD）模型。与 $\overline{C^{\mathrm{2个}}}-{\epsilon }_C$湍流传质的模型。在流体动力学方面，${ķ}_{升}-{\epsilon }_{升}-{ķ}_p-{\epsilon }_p-\Theta$采用方程式描述相的湍流。使用各种阻力模型和不同的建模参数对流体动力学进行了仿真，以测试其敏感性。然后在吸附过程中，最近开发的$\overline{C^{\mathrm{2个}}}-{\epsilon }_C$运用模型对LSFB中的湍流质量扩散进行了严格表征。利用所提出的模型，可以获得速度场以及浓度场。将模拟结果与实验数据进行比较，发现它们之间有很好的一致性。