MASS TRANSFER FROM A CIRCULAR CYLINDER IN AN APPROACHING UNIFORM SHEAR FLOW

1990 ◽  
Author(s):  
Hyung Jin Sung ◽  
Myung Seok Lyu ◽  
Myung Kyoon Chung
Keyword(s):  
Mass Transfer ◽  
Circular Cylinder ◽  
Shear Flow ◽  
Uniform Shear ◽  
Uniform Shear Flow

The heat/mass transfer to a finite strip at small Péclet numbers

1978 ◽  
Vol 86 (1) ◽  
pp. 49-65 ◽  
Author(s):  
R. C. Ackerberg ◽  
R. D. Patel ◽  
S. K. Gupta
Keyword(s):  
Heat Transfer ◽  
Mass Transfer ◽  
Shear Flow ◽  
Sodium Hydroxide Solution ◽  
Flow Direction ◽  
Mathematical Problem ◽  
Limiting Current ◽  
Transfer Rates ◽  
Uniform Shear ◽  
Uniform Shear Flow

The problem of heat transfer (or mass transfer at low transfer rates) to a strip of finite length in a uniform shear flow is considered. For small values of the Péclet number (based on wall shear rate and strip length), diffusion in the flow direction cannot be neglected as in the classical Leveque solution. The mathematical problem is solved by the method of matched asymptotic expansions and expressions for the local and overall dimensionless heat-transfer rate from the strip are found. Experimental data on wall mass-transfer rates in a tube at small Péclet numbers have been obtained by the well-known limiting-current method using potassium ferrocyanide and potassium ferricyanide in sodium hydroxide solution. The Schmidt number is large, so that a uniform shear flow can be assumed near the wall. Experimental results are compared with our theoretical predictions and the work of others, and the agreement is found to be excellent.

Experimental Investigation of Uniform-Shear Flow Past a Circular Cylinder

1992 ◽  
Vol 114 (3) ◽  
pp. 457-460 ◽  
Author(s):  
Tae Soon Kwon ◽  
Hyung Jin Sung ◽  
Jae Min Hyun
Keyword(s):  
Circular Cylinder ◽  
Shear Flow ◽  
Strouhal Number ◽  
Vortex Shedding ◽  
Laboratory Experiments ◽  
Processing Technique ◽  
Image Processing Technique ◽  
Uniform Shear ◽  
Uniform Shear Flow ◽  
Shear Parameter

Extensive laboratory experiments were carried out to investigate the uniform-shear flow approaching a circular cylinder. The aim was to present the Strouhal number (St)- Reynolds number (Re) diagrams over a broad range of the shear parameter K (0 ≤ K ≤ 0.25) and at higher values of Re (600 ≤ Re ≤ 1600). An image processing technique, in conjunction with flow visualization studies, was used to secure more quantitative depictions of vortex shedding from the cylinder. The Strouhal number increases with increasing shear parameter. The drag coefficient decreases with increasing Re; also, Cd decreases as the shear parameter K increases.

On the transient Leveque's problem with an application in electrochemistry

1981 ◽  
Vol 46 (13) ◽  
pp. 3209-3220 ◽  
Author(s):  
Ondřej Wein
Keyword(s):  
Mass Transfer ◽  
Shear Flow ◽  
Analytical Form ◽  
Step Change ◽  
Electrochemical Potential ◽  
Uniform Shear ◽  
Uniform Shear Flow ◽  
Efficient Data ◽  
Current Densities ◽  
Simple Analytical Form

The electrochemically induced unsteady mass transfer to a uniform shear flow from a local wall electrode subjected to a step change in electrochemical potential is studied. Due to neglecting the streamwise diffusion, the problem has two solutions which however differ only insignificantly. The resulting transient characteristics of current densities have a simple analytical form suitable for an efficient data treatment.

Uniform shear flow past a circular cylinder

2005 ◽  
Vol 178 (3-4) ◽  
pp. 199-222 ◽  
Author(s):  
K. Rohlf ◽  
S. J. D. D’Alessio
Keyword(s):  
Circular Cylinder ◽  
Shear Flow ◽  
Uniform Shear ◽  
Uniform Shear Flow ◽  
Flow Past
Sign in / Sign up

Export Citation Format

Share Document