Bubble Coalescence: Effect of Bubble Approach Velocity and Liquid Viscosity

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F15%3A00444323" target="_blank" >RIV/67985858:_____/15:00444323 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.ces.2015.04.053" target="_blank" >http://dx.doi.org/10.1016/j.ces.2015.04.053</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ces.2015.04.053" target="_blank" >10.1016/j.ces.2015.04.053</a>

Result language
angličtina
Original language name
Bubble Coalescence: Effect of Bubble Approach Velocity and Liquid Viscosity
Original language description
The goal of this study is to present new experimental data on the effect of the bubble approach velocity and liquid viscosity on pairwise bubble coalescence. Measurements were performed to investigate the dynamics of bubble coalescence under well-definedlaboratory conditions. Air and pure aqueous solutions of alginate (no surfactants) were the phases. The bubbles were formed from two vertical capillaries, under constant flow conditions. The coalescence process was recorded with a fast video and then image analysed, to evaluate the bubble growth, bubble expansion rate, the first bubble touch, bubble contact time T, bubble coalescence efficiency E. Three control parameters were tested. The bubble size D on contact was set by the spacing between the capillaries (D = 1 and 1.5 mm). The bubble approach velocity V was controlled by the gas input (V = 0.031 - 39 mm/s). The liquid viscosity ? was adjusted by the alginate content (? = 1.2 - 10.3 mPa.s).
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CI - Industrial chemistry and chemical engineering
OECD FORD branch
—

Project
<a href="/en/project/LD13018" target="_blank" >LD13018: Interfacial properties, their diagnostics and their effects on macroscopic flows</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)