Recent results and persisting problems in modeling flow induced coalescence

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F14%3A00428566" target="_blank" >RIV/61389013:_____/14:00428566 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1063/1.4873862" target="_blank" >http://dx.doi.org/10.1063/1.4873862</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4873862" target="_blank" >10.1063/1.4873862</a>

Result language

angličtina

Original language name

Recent results and persisting problems in modeling flow induced coalescence

Original language description

The contribution summarizes recent results of description of the flow induced coalescence in immiscible polymer blends and addresses problems that call for which solving. The theory of coalescence based on the switch between equations for matrix drainagebetween spherical or deformed droplets provides a good agreement with more complicated modeling and available experimental data for probability, Pc, that the collision of droplets will be followed by their fusion. A new equation for description of the matrix drainage between deformed droplets, applicable to the whole range of viscosity ratios, p, of the droplets and matrixes, is proposed. The theory facilitates to consider the effect of the matrix elasticity on coalescence. Pc decreases with the matrixrelaxation time but this decrease is not pronounced for relaxation times typical of most commercial polymers. Modeling of the flow induced coalescence in concentrated systems is needed for prediction of the dependence of coalescence rate

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

BK - Liquid mechanics

OECD FORD branch

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Project

<a href="/en/project/GAP106%2F11%2F1069" target="_blank" >GAP106/11/1069: Droplet breakup and coalescence in flowing immiscible polymer blends</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

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

Article name in the collection

AIP Conference Proceedings

ISBN

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ISSN

0094-243X

e-ISSN

—

Number of pages

4

Pages from-to

"Roč. 1593"

Publisher name

American Institute of Physics

Place of publication

Melville

Event location

Nuremberg

Event date

Jul 15, 2013

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000341414900138