Heat and mass transfer in a fault zone-controlled geothermal reservoir: Numerical results

1983 ◽  
Vol 88 (B4) ◽  
pp. 3458 ◽  
Author(s):  
R. Pratt ◽  
D. R. Kassoy ◽  
J. Gary
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Fault Zone ◽  
Numerical Results ◽  
Geothermal Reservoir

scholarly journals Nonstationary flow of roiling liquid

1984 ◽  
Vol 6 (4) ◽  
pp. 12-20
Author(s):  
Duong Ngoc Hai
Keyword(s):  
Mass Transfer ◽  
Differential Equations ◽  
Phase Boundary ◽  
Heat And Mass Transfer ◽  
Numerical Results ◽  
Linear Differential Equations ◽  
Nonstationary Flow ◽  
One Dimensional ◽  
Boiling Liquid ◽  
Linear Differential

Steady one-dimensional nonstationary flow of boiling liquid from finite or infinit pipe in a consideration of the effect of the phase-boundary heat and mass transfer. The Received system of quasi-linear differential equations has been decided by the modificati on of Lax - wendroff method in IBM. Numerical results are compared as xperimental data.

Correlations for Film Regeneration and Air Dehumidification for a Falling Desiccant Film With Air in Crossflow

1996 ◽  
Vol 118 (3) ◽  
pp. 634-641 ◽  
Author(s):  
M. Park ◽  
J. R. Howell ◽  
G. C. Vliet
Keyword(s):  
Mass Transfer ◽  
Statistical Analysis ◽  
Heat And Mass Transfer ◽  
Triethylene Glycol ◽  
Numerical Results ◽  
Liquid Desiccant ◽  
Independent Variables

The coupled heat and mass transfer between a falling triethylene glycol (TEG) desiccant film and air in crossflow have previously been presented and solved numerically for the cases of regeneration and dehumidification. Here, correlations for the effects of independent variables on the rate of regeneration in the regenerator and on the rate of dehumidification and sensible cooling in the absorber are developed by statistical analysis of the numerical results. The functional correlations developed should be useful in the design of regenerators and absorbers having falling liquid desiccant films and air in crossflow.

scholarly journals A Study of MHD Casson Fluid Flow over a Permeable Stretching Sheet with Heat and Mass Transfer

2020 ◽  
pp. 10-25
Author(s):  
K. K. Asogwa ◽  
A. A. Ibe
Keyword(s):  
Mass Transfer ◽  
Fluid Flow ◽  
Heat And Mass Transfer ◽  
Stretching Sheet ◽  
Numerical Approach ◽  
Casson Fluid ◽  
Skin Friction Coefficient ◽  
Numerical Results ◽  
Local Similarity ◽  
Similarity Transformations

In this paper, we study the numerical approach of MHD Casson fluid flow over a permeable stretching sheet with heat and mass transfer taking into cognizance the various parameters present. A set of suitable local similarity transformations are used to non-dimensionalize the governing equations of the present problem. The system of ordinary differential equations are solved numerically by MATLAB bvp4c solver. The effect of the involved parameters on Velocity, Temperature, and Concentration, Skin friction coefficient, Nusselt number and Sherwood number has been studied and numerical results are presented graphically and in tabular form. The numerical results are in good agreement with those of the results previously published in the literature.

A Numerical Model for Unsteady Oil Film Motion in Aero-Engine Bearing Chambers and Experimental Verification

2013 ◽  
Author(s):  
Zhenxia Liu ◽  
Jingyu Zhao ◽  
Jianping Hu ◽  
Yaguo Lu
Keyword(s):  
Mass Transfer ◽  
Film Thickness ◽  
Heat And Mass Transfer ◽  
Film Formation ◽  
Maximum Error ◽  
Numerical Results ◽  
Test Rig ◽  
Thickness Change ◽  
Oil Film ◽  
Institute Of Technology

The work presented here focusing on the motion of oil film heat and mass transfer. A complete mathematical model based on theoretical study to solve three-dimensional unsteady oil film motion was established. Numerical simulation for different test rigs (bearing chamber test rig of Karlsruhe Institute of Technology (KIT) and rotating cylinder test rig of Northwestern Polytechnical University (NPU)) and different working conditions was carried out by using CFD commercial software. Particle tracks, oil film thickness change history and film stripping were studied, and the numerical results of oil film thickness were obtained. The numerical results show that the motion of the oil film will reach the state of basic stability for unsteady oil flow, and a development process from the oil film formation to basic stability in this paper is less than 1.5 seconds. Moreover, comparison between the numerical results and the experimental values shows that the maximum error of oil film thickness is less than 7% at the measurement points under the calculation conditions, which indicates the proposed computational model to solve unsteady oil film motion is a valuable technical means for the study of oil film movement mechanism and oil film heat and mass transfer.

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