摘要
利用FLUENT中气-固多孔介质模型可模拟多孔介质内气体的流动规律。针对FLUENT自带的单相多孔介质模型不能表现变压吸附气体与固体吸附颗粒之间的传质、传热问题,采用FLUENT用户自定义函数编程,反映吸附分离传质、传热和动量传递,将多孔介质单相模型耦合为更准确的气固两相流模型,并加以验证。结果表明,出口氧气平均摩尔浓度误差在2%左右,模拟与实验结果吻合较好。
Gas-solid porous media model based on the FLUENT can simulate the law of gas flow in porous media.The program of FLUENT built for single-phase porous media model can not express the mass transfer,heat transfer problems existed between gas and solid particles on PSA adsorption.The functional programs of user definition in FLUENT are set up and validated to reflect the adsorption separation and mass transfer,heat and momentum transfer FLUENT for single-phase porous media model,in which the porous medium as a single-phase model coupling phase flow model shows good accuracy.The results show that the error of the average export oxygen molar concentration is about 2％ error,and the simulation and experimental results agree well.
出处
《现代化工》
CAS
CSCD
北大核心
2013年第9期130-135,共6页
Modern Chemical Industry
关键词
变压吸附
FLUENT
多孔介质
气-固两相流模型
pressure swing adsorption
FLUENT
porous media
gas-solid two phase coupling model
