Numerical simulation of the multicomponent mass transfer during Bridgman growth of CdZnTe crystal using Maxwell-Stefan diffusion model

The results of simulations of transient multicomponent surface diffusion in a microporous adsorbent are given for various conditions. The generalized Maxwell-Stefan theory was applied to describe the diffusion phenomena. The diffusion equations were solved numerically. The transient uptake of a binary mixture and the counterdiffusion of two sorbate species in a slab were simulated. Some striking phenomena of multicomponent diffusion are presented. The relation to the approximate solution obtained by the linearized theory of multicomponent mass transfer is discussed. The simulations are compared with various results found in the literature.

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Numerical Simulation of Conjugate Heat and Mass Transfer in Combination of Penetrating and Convection-Screen Cooling of a Blunt Body

Heat Transfer Research ◽

10.1615/heattransres.v31.i6-8.110 ◽

2000 ◽

Vol 31 (6-8) ◽

pp. 452-458

Author(s):

Dmitry L. Reviznikov ◽

Anatoly F. Polyakov

Keyword(s):

Numerical Simulation ◽

Mass Transfer ◽

Heat And Mass Transfer ◽

Blunt Body

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NUMERICAL SIMULATION OF HEAT AND MASS TRANSFER IN A 2D LID-DRIVEN CAVITY

10.26678/abcm.encit2016.cit2016-0686 ◽

2016 ◽

Author(s):

Leonardo Carvalho de Jesus ◽

Julio Tomás Aquije Chacaltana

Keyword(s):

Numerical Simulation ◽

Mass Transfer ◽

Heat And Mass Transfer ◽

Driven Cavity

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Transient Numerical Simulation of a Liquid-Vapor Mixture with Interphase Mass Transfer

10.26678/abcm.encit2018.cit18-0045 ◽

2018 ◽

Author(s):

Bruno Rodrigues ◽

Eugênio Spanó Rosa

Keyword(s):

Numerical Simulation ◽

Mass Transfer ◽

Vapor Mixture ◽

Interphase Mass Transfer ◽

Transient Numerical Simulation ◽

Liquid Vapor

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Modeling of mass transfer in biofilms in oscillatory flow conditions using k-ɛ turbulence model

Water Science & Technology Water Supply ◽

10.2166/ws.2003.0104 ◽

2003 ◽

Vol 3 (1-2) ◽

pp. 201-207

Author(s):

H. Nagaoka ◽

T. Nakano ◽

D. Akimoto

Keyword(s):

Numerical Simulation ◽

Mass Transfer ◽

Turbulence Model ◽

Uptake Rate ◽

Oscillatory Flow ◽

Substrate Uptake ◽

Flow Conditions ◽

Mass Transfer Mechanism ◽

Substrate Uptake Rate ◽

Good Agreement

The objective of this research is to investigate mass transfer mechanism in biofilms under oscillatory flow conditions. Numerical simulation of turbulence near a biofilm was conducted using the low Reynold’s number k-ɛ turbulence model. Substrate transfer in biofilms under oscillatory flow conditions was assumed to be carried out by turbulent diffusion caused by fluid movement and substrate concentration profile in biofilm was calculated. An experiment was carried out to measure velocity profile near a biofilm under oscillatory flow conditions and the influence of the turbulence on substrate uptake rate by the biofilm was also measured. Measured turbulence was in good agreement with the calculated one and the influence of the turbulence on the substrate uptake rate was well explained by the simulation.

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