Edge Contact Angle, Capillary Condensation, and Meniscus Depinning.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F21%3A00545672" target="_blank" >RIV/67985858:_____/21:00545672 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22340/21:43922336

Result on the web

<a href="http://hdl.handle.net/11104/0322350" target="_blank" >http://hdl.handle.net/11104/0322350</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.127.115703" target="_blank" >10.1103/PhysRevLett.127.115703</a>

Result language

angličtina

Original language name

Edge Contact Angle, Capillary Condensation, and Meniscus Depinning.

Original language description

We study the phase equilibria of a fluid confined in an open capillary slit formed when a wall of finite length H is brought a distance L away from a second macroscopic surface. This system shows rich phase equilibria arising from the competition between two different types of capillary condensation, corner filling and meniscus depinning transitions depending on the value of the aspect ratio a=L/H. For long capillaries, with a<2/π, the condensation is of type I involving menisci which are pinned at the top edges at the ends of the capillary characterized by an edge contact angle. For intermediate capillaries, with 2/π1, condensation is always of type II. In all regimes, capillary condensation is completely suppressed for sufficiently large contact angles. We show that there is an additional continuous phase transition in the condensed liquidlike phase, associated with the depinning of each meniscus as they round the upper open edges of the slit. Finite-size scaling predictions are developed for these transitions and phase boundaries which connect with the fluctuation theories of wetting and filling transitions. We test several of our predictions using a fully microscopic density functional theory which allows us to study the two types of capillary condensation and its suppression at the molecular level.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project

<a href="/en/project/GA20-14547S" target="_blank" >GA20-14547S: Interfacial and critical phenomena of simple and complex fluids under nano-structured confinement</a><br>

Continuities

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

Publication year

2021

Confidentiality

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

Name of the periodical

Physical Review Letters

ISSN

0031-9007

e-ISSN

1079-7114

Volume of the periodical

127

Issue of the periodical within the volume

11

Country of publishing house

US - UNITED STATES

Number of pages

5

Pages from-to

115703

UT code for WoS article

000694048000003

EID of the result in the Scopus database

2-s2.0-85114873218