Turbulent heat-and-mass-transfer model in a near-wall zone of separated flows

1996 ◽  
Vol 37 (3) ◽  
pp. 370-380 ◽  
Author(s):  
A. V. Gorin ◽  
D. F. Sikovskii
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Separated Flows ◽  
Transfer Model ◽  
Turbulent Heat ◽  
Mass Transfer Model ◽  
Wall Zone ◽  
Near Wall

Heat and Mass Transfer at High Speed Filtration in Porous Media and Packed Beds

2012 ◽  
Vol 322 ◽  
pp. 195-210
Author(s):  
Alexander Gorin
Keyword(s):  
Mass Transfer ◽  
Porous Media ◽  
Heat And Mass Transfer ◽  
High Speed ◽  
Structural Characteristics ◽  
Separated Flows ◽  
Packed Beds ◽  
Transfer Processes ◽  
Wall Zone ◽  
Near Wall

Packed beds composed of spherical balls are used for the study of transfer processes in porous media at turbulent filtration. The paper summarizes the development of a physical modelling of transfer processes in packed beds. It is shown that the available quantitative measurements of structural characteristics of infiltrated flow in packed beds such as the near-wall zone velocity and temperature profiles and velocity pulsation spectra follow the similarity laws of turbulent separated flows that have been developed by the author and are represented in the first part of the paper. These facts supported by visual observations of flow patterns in packed beds from various authors allow implementing the analogy between transfer processes mechanism in turbulent separated flows and convective transfer processes in near-wall zone of surfaces embedded in grainy layers, or ducts filled with packed bed, at high Reynolds numbers. This approach has resulted in the asymptotic heat and mass transfer law. The universal character of the heat and mass transfer law for the surfaces embedded in grainy layer is confirmed by the authors data and data from many other studies.

A COMBINED HEAT AND MASS TRANSFER MODEL FOR THE RANQUE HILSCH VORTEX TUBE

2018 ◽  
Author(s):  
M. Chatterjee ◽  
S. Mukhopadhyay ◽  
P. K. Vijayan
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Vortex Tube ◽  
Transfer Model ◽  
Mass Transfer Model

A Study of GOTHIC 8.0 Code Application to AP1000 Containment Response

2013 ◽  
Author(s):  
Guodong Wang ◽  
Zhe Wang
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Mass Transfer Process ◽  
Transfer Model ◽  
Mass Transfer Model ◽  
Containment Model ◽  
Evaporation Heat ◽  
Containment Shell ◽  
Film Heat Transfer ◽  
Inside Wall

The AP1000 containment model has been developed by using WGOTHIC version 4.2 code. Condensation heat and mass transfer from the volumes to the containment shell, conduction through the shell, and evaporation from the shell to the riser were all calculated by using the special CLIMEs model. In this paper, the latest GOTHIC version 8.0 code is used to model both condensation and evaporation heat and mass transfer process. An improved heat and mass transfer model, the diffusion layer model (DLM), is adopted to model the condensation on the inside wall of containment. The Film heat transfer coefficient option is used to model the evaporation on the outside wall of containment. As a preliminary code consolidation effort, it is possible to use GOTHIC 8.0 code as a tool to analysis the AP1000 containment response.

Simplified analysis of heat and mass transfer model in droplet evaporation process

2016 ◽  
Vol 99 ◽  
pp. 938-943 ◽  
Author(s):  
Yunyun Wu ◽  
Xiaosong Zhang ◽  
Xuelai Zhang
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Droplet Evaporation ◽  
Transfer Model ◽  
Evaporation Process ◽  
Mass Transfer Model ◽  
Simplified Analysis

New 2-D coupled fluid flow, heat and mass transfer model for the description of thermal diffusion cloud chambers

1999 ◽  
Vol 30 ◽  
pp. S75-S76 ◽  
Author(s):  
F. Stratmann ◽  
V. Zdimal ◽  
M. Wilck ◽  
J. Smolik
Keyword(s):  
Mass Transfer ◽  
Fluid Flow ◽  
Heat And Mass Transfer ◽  
Thermal Diffusion ◽  
Transfer Model ◽  
Mass Transfer Model ◽  
Flow Heat
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