云南高校图书馆联盟文献共享服务平台- DIFFUSIVITY

DIFFUSIVITY: 作品数：162被引量：204H指数：6; 导出分析报告; 相关领域：理学更多>>; 相关作者：叶勤赵亭亭杨江辉汤华清李惟毅更多>>; 相关机构：华中科技大学中国石油大学（北京）重庆市建筑科学研究院天津大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划河北省自然科学基金国家教育部博士点基金更多>>

A turbulent mass diffusivity model for analyzing the mixing characteristics in an impinging stream-rotating packed bed: 《Chinese Journal of Chemical Engineering》2024年第10期133-143,共11页Chao Zhang Youzhi Liu Weizhou Jiao Guisheng Qi Zhiguo Yuan Qiaoling Zhang Hongyan Shen; supported by the National Natural Science Foundation of China (22208328, 22378370 and 22108261);Fundamental Research Program of Shanxi Province(20210302124618); In this study,the fluid flow and mixing process in an impinging stream-rotating packed bed(IS-RPB)is simulated by using a new three-dimensional computational fluid dynamics model.Specifically,the gaseliquid flow is si...; 关键词：Impinging stream-rotating packed bed Turbulent mass diffusivity model Computational fluid dynamics Mixing performance Segregation index

Hydrodynamic dispersion of reactive solute in a Hagen–Poiseuille flow of a layered liquid: 《Chinese Journal of Chemical Engineering》2017年第7期862-873,共12页Sudip Debnath Apu Kumar Saha B.S.Mazumder Ashis Kumar Roy; An analysis of the solute dispersion in the liquid flowing through a pipe by means of Aris–Barton's ‘method of moments', under the joint effect of some finite yield stress and irreversible absorption into the wall i...; 关键词：Casson liquid Yield stress Axial-dispersion coefficient Irreversible reaction DIFFUSIVITY

Prediction of Distillation Column Performance by Computational Mass Transfer Method被引量：2: 《Chinese Journal of Chemical Engineering》2011年第5期833-844,共12页孙志民刘春江余国琮袁希钢; Supported by the National lqatural Science Foundation of China （20736005）.; A computational mass transfer model is proposed for predicting the concentration profile and Murphree efficiency of sieve tray distillation column. The proposed model is based on using modified c＇2 -εc＇ two equatio...; 关键词：simulation concentration field computational mass transfer computational fluid-dynamics tray efficiency sieve tray turbulent mass transfer diffusivity

Determination of Transport Properties for Dilute Gas Mixtures Involving Carbon Tetrafluoride: 《Chinese Journal of Chemical Engineering》2010年第2期297-305,共9页Mohammad Mehdi Papari Jalil Moghadasi Soodabeh Nikmanesh Mahmood RezaDehghan; In our previous work,we calculated transport properties of pure gaseous polyatomic carbon tetrafluoride(CF4) and five equimolar binary gas mixtures of CF4 with noble gases through inversion technique.The present work ...; 关键词：principle of corresponding states inversion method kinetic theory of gases DIFFUSIVITY thermal conductivity VISCOSITY transport properties

Diffusion of H2, CO, N2,O2 and CH4 Through Nanoporous Carbon Membranes被引量：1: 《Chinese Journal of Chemical Engineering》2008年第5期709-714,共6页吴志强刘志平汪文川范益群徐南平; Supported by the state Key Development Program for Basic Research of China （2003CB615707） and the National Natural Science Foundation of China （20736005）.; Diffusion of pure H2, CO, N2,O2 and CH4 gases through nanoporous carbon membrane is investigated by carrying out non-equilibrium molecular dynamics （NEMD） simulations. The flux, transport diffusivity and activation ...; 关键词：non-equilibrium molecular dynamics carbon membrane transport diffusivity flux activation energy

Computational Mass Transfer Method for Chemical Process Simulation被引量：10: 《Chinese Journal of Chemical Engineering》2008年第4期497-502,共6页袁希钢余国琮; Supported by the National Science Foundation of China（20736005）.ACKNOWLEDGEMENTSThe authors acknowledge the assistance from thestaff in the State Key Laboratories of Chemical Engineering （Tianjin University）.; The recent works on the development of computational mass transfer （CMT） method and its applications in chemical process simulation are reviewed. Some development strategies and challenges in future research are als...; 关键词：computational mass transfer turbulent mass transfer diffusivity chemical process simulation

Drying Kinetics and Energy Consumption in Vacuum Drying Process with Microwave and Radiant Heating被引量：4: 《Chinese Journal of Chemical Engineering》2004年第6期809-813,共5页M.Kamel J.I.Lombrana C.de Elvira R.Rodríguez; The general objective of this work is to analyze energy input in a vacuum process with the incorporation of microwave heating. Thus, necessary criteria for designing an efficient freeze-drying operation are considered...; 关键词：vacuum microwave drying diffusivity constant ENERGY

Local Liquid Side Mass Transfer Model in Gas-Liquid-Solid Three-Phase Flow Airlift Loop Reactor for Newtonian and Non-Newtonian Fluids被引量：1: 《Chinese Journal of Chemical Engineering》2004年第3期347-350,共4页闻建平贾晓强毛国柱; the National Natural Science Foundation of China (No. 20176040, No. 20336030 and No. 90206001).; A small scale isotropic mass transfer model was developed for the local liquid side mass transfer coefficients in gas-liquid-solid three-phase flow airlift loop reactor for Newtonian and non-Newtonian fluids. It is ba...; 关键词：DIFFUSIVITY energy dissipation Kolmogoroff scale MICROSCALE penetration theory

Theoretical Approach to Concentration Distribution and Adhesion Efficiency of Fine Particles Around a Rising Bubble in Slurry Systems被引量：1: 《Chinese Journal of Chemical Engineering》2002年第5期550-557,共8页蔡旺锋许春建周明; Supported by the National Natural Science Foundation of China (No. 20126010).; Quantitative prediction of distribution function and adhesionefficiency of particles around a rising bubble in slurry systems ispresented in this work. By solving the convection-diffusion equation(Fokker-Planck equati...; 关键词：adhesion efficiency Brownian diffusivity distribution function Fokker-Planck equation

CORRELATION OF DIFFUSION COEFFICIENTS FOR LIQUIDS AND DENSE FLUIDS WITH TEMPERATURE AND PRESSURE: 《Chinese Journal of Chemical Engineering》1994年第3期50-59,共10页刘洪勤汪文川卢焕章; On the basis of the free volume theory and activation energy concept,a fundamental equation whichtakes into account the effects of temperature and pressure has been developed.By introducing differentexpressions for th...; 关键词：DIFFUSIVITY liquid and DENSE fluid correlation PRESSURE TEMPERATURE free volume ACTIVATION energy

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