CAJ | 학술논문

将系列文章第1部分(Ⅰ)中描述的雷诺质流模型应用到填料床催化反应过程的模拟.模拟对象为填料床催化反应合成醋酸乙烯的过程.采用雷诺质流模型,可以同时得到填料床内组分浓度、气相温度以及速度分布.模拟结果与实验测量值符合较好.通过对比发现,由于雷诺质流模型能准确表征填料床内湍流传质扩散的各向异性,使得该模型模拟结果优于传统模型.最后,本文对湍流传质扩散的各向异性进行了初步探讨.
장계렬문장제1부분(Ⅰ)중묘술적뢰낙질류모형응용도전료상최화반응과정적모의.모의대상위전료상최화반응합성작산을희적과정.채용뢰낙질류모형,가이동시득도전료상내조분농도、기상온도이급속도분포.모의결과여실험측량치부합교호.통과대비발현,유우뢰낙질류모형능준학표정전료상내단류전질확산적각향이성,사득해모형모의결과우우전통모형.최후,본문대단류전질확산적각향이성진행료초보탐토.
Simulation of catalytic reaction process using the Reynolds mass flux model described in Part Ⅰof these sequential articles was presented. The object of the simulation was the vinyl acetate synthesis in a packed bed. With the Reynolds mass flux model,the concentration and temperature as well as the velocity distributions were obtained. The simulation results were compared against the open experimental data and satisfactory agreement has beenfound between them. It is also found that the Reynolds mass flux model performs better than the conventional model due to the reason that by using the presented Reynolds mass flux model the anisotropic turbulent mass diffusion can be char-acterized with accuracy. Furthermore,anisotropy of the mass diffusion under turbulent flow condition has been dis-cussed.