ON TWO ALTERNATIVE MOTIVATIONS OF REFERENCE-STATE EXPRESSIONS FOR TURBULENT FLOWS WITH MASS TRANSFER

AIAA Journal ◽  
1963 ◽  
Vol 1 (5) ◽  
pp. 1206-1208 ◽  
Author(s):  
ELDON L. KNUTH
2012 ◽  
Vol 550-553 ◽  
pp. 2014-2018
Author(s):  
Xiao Lan Zhou ◽  
Cai Xi Liu ◽  
Yu Hong Dong

Electrochemical mass transfer in turbulent flows and binary electrolytes is investigated. The primary objective is to provide information about mass transfer in the near-wall region between a solid boundary and a turbulent fluid flow at different Schmidt numbers. Based on the computational fluid dynamics and electrochemistry theories, a model for turbulent electrodes channel flow is established. The turbulent mass transfer in electrolytic processes has been predicted by the direct numerical simulation method under limiting current and galvanostatic conditions, we investigate mean concentration and the structure of the concentration fluctuating filed for different Schmidt numbers from 0.1 to 100 .The effect of different concentration boundary conditions at the electrodes on the near-wall turbulence statistics is also discussed.


1987 ◽  
Vol 14 (11) ◽  
pp. 1131-1134 ◽  
Author(s):  
Bradley N. Opdyke ◽  
Giselher Gust ◽  
James R. Ledwell

Author(s):  
Alexander S. Filippov ◽  
Vladimir M. Alipchenkov ◽  
Nickolay I. Drobyshevsky ◽  
Roman V. Mukin ◽  
Valeri Th. Strizhov ◽  
...  

The paper is aimed at the application of a model for simulating the dispersed turbulent flows. The model presented proceeds from a kinetic equation for the probability density function of the particle velocity distribution in turbulent flow. This approach is called the diffusion-inertia model (DIM). Applications of the model to droplet and bubble flows are presented. In the case of vaporized liquid, the interphase heat and mass transfer is introduced by adding the corresponding governing equations. This extended version of the DIM was applied to simulating the boiling water flow in a heated pipe.


1973 ◽  
Vol 95 (2) ◽  
pp. 227-234 ◽  
Author(s):  
T. Cebeci

This paper presents a model for eddy conductivity and turbulent Prandtl number based on the considerations of a Stokes-type flow. The expressions obtained by the model provide continuous velocity and temperature distributions for turbulent flows and are applicable to flows with pressure gradients, mass transfer, and heat transfer. Close to the wall the turbulent Prandtl number appears to be strongly affected by the molecular Prandtl number; away from the wall it is constant, that is, it is independent of the molecular Prandtl number. Calculated results agree well with experiments, including those with fluids having both low and high Prandtl numbers. In addition the results confirm recent experimental findings, in that the mass transfer has no effect on turbulent Prandtl number.


1995 ◽  
Vol 48 (7) ◽  
pp. 351-460 ◽  
Author(s):  
Richard H. Nadolink ◽  
Wayne W. Haigh

This bibliography on skin friction reduction with boundary-layer additives including polymers, surfactants, disoaps, micelles, and particulates, covers over a seventy-year period from 1922 through 1994. Although the emphasis in this bibliography is on the fluid mechanics associated with alterations in boundary-layer momentum transfer, complementary studies on boundary-layer heat and mass transfer are also inlcuded. The emphasis in this bibliography is on turbulent flows for a wide variety of configurations and conditions, however, some publications on transitional and laminar flows have also been included for completeness. Over 4,900 publications are included in this sizable bibliography.


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