欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
计算液体动力学(CFD ) 为理解多相的流动的液体动力学成为了一个其他的方法到实验。一个二液体的模型，在煤气阶段、稳固阶段的动量方程包含另外的条款，被用来在一张使流体化的床上调查使液化质量。为有 2,660 kg/m3 和 500 m 的一条直径的密度的石英沙的案例研究，其物理性质类似于为通过残余液体生产干净燃料的催化剂的一种新类型催化裂开过程，与 0.57 m 宽度和 1.00 m 高度在一张二维的使流体化的床上被模仿。短暂起泡并且崩溃的特征被集成自定义 Fortran 子程序数字地在 CFX 4.4 的站台调查。使液化和倒塌处理的结果表演在对 Geldart B 分类的古典理论的公平同意，但是倒塌时间被水泡在在稠密的阶段和干舷之间的接口影响。
英文摘要：
Computational Fluid Dynamics （CFD） has become an alternative method to experiments for understanding the fluid dynamics of multiphase flow. A two-fluid model, which contains additional terms in both the gas- and solid-phase momentum equations, is used to investigate the fluidization quality in a fluidized bed. A case study for quartz sand with a density of 2,660 kg/m^3 and a diameter of 500 μm, whose physical property is similar to a new kind of catalyst for producing clean fuels through the residue fluid catalytic cracking process, is simulated in a two-dimensional fluidized bed with 0.57 m width and 1.00 m height. Transient bubbling and collapsing characteristics are numerically investigated in the platform of CFX 4.4 by integrating user-defined Fortran subroutines. The results show that the fluidization and collapse process is in fair agreement with the classical theory of Geldart B classification, but the collapse time is affected by bubbles at the interface between the dense phase and freeboard.
同期刊论文项目
同项目期刊论文
期刊信息
位置：