Microbubbles: Properties, Mechanisms of Their Generation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F17%3A00476911" target="_blank" >RIV/61388998:_____/17:00476911 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/978-3-319-60282-0_8" target="_blank" >http://dx.doi.org/10.1007/978-3-319-60282-0_8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-319-60282-0_8" target="_blank" >10.1007/978-3-319-60282-0_8</a>

Result language

angličtina

Original language name

Microbubbles: Properties, Mechanisms of Their Generation

Original language description

This chapter discusses microbubbles—small gas bubbles in liquid medium of diameter less than 1 mm. Although they were known to offer a number of advantages, until recently they could be generate only by energetically inefficient methods. New horizons became open by the discovery of generation by aerators provided with an oscillator in their gas supply. Chapter provides in particular an information about no-moving-part fluidic oscillators, recently already almost forgotten but now demonstrated to offer benefits like low manufacturing cost, reliability, long life and absence of maintenance. The empirical fact that small bubbles cannot be obtained simply by making small passages in the aerator is here explained by conjunction of several microbubbles. Because the velocity of bubble motion decreases with decreasing size, small microbubbles tend to dwell near the aerator exits. They then coalesce there into a much larger bubble (the trend supported by the latter possessing lower surface energy). The fact that the oscillator prevents this conjunction and thus keeps the microbubbles small has been explained by high-speed camera images which show the effect of oscillatory motions.

Czech name

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Czech description

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Type

C - Chapter in a specialist book

CEP classification

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OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

<a href="/en/project/GA13-23046S" target="_blank" >GA13-23046S: Fludic oscillators for algae cultivation</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Book/collection name

Particles in Flows

ISBN

978-3-319-60281-3

Number of pages of the result

26

Pages from-to

453-519

Number of pages of the book

519

Publisher name

Birkhäuser Basel

Place of publication

Basel

UT code for WoS chapter

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