Measurement and Analysis of Gas Bubble Evolution from an Anode in Electrolytic Cells

2010 ◽  
Vol 49 (6) ◽  
pp. 2926-2931 ◽  
Author(s):  
Supathorn Phongikaroon ◽  
Robert O. Hoover ◽  
Emily C. Barker
Keyword(s):  
Gas Bubble ◽  
Electrolytic Cells ◽  
Measurement And Analysis ◽  
Bubble Evolution

scholarly journals Bubble parameters and efficiency of gas bubble evolution for a chlorine-, a hydrogen- and an oxygen-evolving wire electrode

1988 ◽  
Vol 33 (6) ◽  
pp. 769-779 ◽  
Author(s):  
J.M. Chin Kwie Joe ◽  
L.J.J. Janssen ◽  
S.J.D. van Strelen ◽  
J.H.G. Verbunt ◽  
W.M. Sluyter
Keyword(s):  
Gas Bubble ◽  
Wire Electrode ◽  
Bubble Evolution ◽  
Oxygen Evolving

scholarly journals A quantitative phase-field model of gas bubble evolution in UO2

2020 ◽  
Vol 184 ◽  
pp. 109867
Author(s):  
Zhihua Xiao ◽  
Yafeng Wang ◽  
Shenyang Hu ◽  
Yulan Li ◽  
San-Qiang Shi
Keyword(s):  
Phase Field ◽  
Field Model ◽  
Phase Field Model ◽  
Gas Bubble ◽  
Quantitative Phase ◽  
Bubble Evolution

On the Modeling of Gas Bubble Evolution and Transport Using Coupled Level-Set/CFD Method

2007 ◽  
Vol 158 (2) ◽  
pp. 261-274 ◽  
Author(s):  
Bartlomiej Z. Wierzbicki ◽  
Steven P. Antal ◽  
Michael Z. Podowski
Keyword(s):  
Level Set ◽  
Gas Bubble ◽  
Bubble Evolution ◽  
Cfd Method

An experimental study of gas-bubble evolution on a single exposure to a variable pressure field

2013 ◽  
Vol T155 ◽  
pp. 014015
Author(s):  
A V Pavlenko ◽  
O E Shestachenko ◽  
A A Tyaktev ◽  
Yu A Piskunov ◽  
V N Popov ◽  
...  
Keyword(s):  
Experimental Study ◽  
Pressure Field ◽  
Variable Pressure ◽  
Gas Bubble ◽  
Single Exposure ◽  
Bubble Evolution

Mathematical Model of Gas Bubble Evolution in a Straight Tube

1999 ◽  
Vol 121 (5) ◽  
pp. 505-513 ◽  
Author(s):  
D. Halpern ◽  
Y. Jiang ◽  
J. F. Himm
Keyword(s):  
Decompression Sickness ◽  
Ambient Pressure ◽  
Fluid Motion ◽  
Gas Bubbles ◽  
Coupled System ◽  
Bubble Surface ◽  
Inert Gas ◽  
Straight Tube ◽  
Gas Bubble ◽  
Bubble Evolution

Deep sea divers suffer from decompression sickness (DCS) when their rate of ascent to the surface is too rapid. When the ambient pressure drops, inert gas bubbles may form in blood vessels and tissues. The evolution of a gas bubble in a rigid tube filled with slowly moving fluid, intended to simulate a bubble in a blood vessel, is studied by solving a coupled system of fluid-flow and gas transport equations. The governing equations for the fluid motion are solved using two techniques: an analytical method appropriate for small nondeformable spherical bubbles, and the boundary element method for deformable bubbles of arbitrary size, given an applied steady flow rate. A steady convection-diffusion equation is then solved numerically to determine the concentration of gas. The bubble volume, or equivalently the gas mass inside the bubble for a constant bubble pressure, is adjusted over time according to the mass flux at the bubble surface. Using a quasi-steady approximation, the evolution of a gas bubble in a tube is obtained. Results show that convection increases the gas pressure gradient at the bubble surface, hence increasing the rate of bubble evolution. Comparing with the result for a single gas bubble in an infinite tissue, the rate of evolution in a tube is approximately twice as fast. Surface tension is also shown to have a significant effect. These findings may have important implications for our understanding of the mechanisms of inert gas bubbles in the circulation underlying decompression sickness.

scholarly journals Gas bubble evolution on microstructured silicon substrates

2018 ◽  
Vol 11 (12) ◽  
pp. 3452-3462 ◽  
Author(s):  
Peter van der Linde ◽  
Pablo Peñas-López ◽  
Álvaro Moreno Soto ◽  
Devaraj van der Meer ◽  
Detlef Lohse ◽  
...  
Keyword(s):  
Gas Bubbles ◽  
Chemical Processes ◽  
Silicon Substrates ◽  
Gas Bubble ◽  
Bubble Evolution

The formation, growth and detachment of gas bubbles on electrodes and gas-producing chemical processes can be controlled with novel microfabricated structures.

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