Počet záznamů: 1

Separation of dense colloidal suspensions in narrow channels: a stochastic model

SYSNO ASEP	0534724
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Separation of dense colloidal suspensions in narrow channels: a stochastic model
Tvůrce(i)	Humenyuk, Yosyp A. (FZU-D)_ORCID Kotrla, Miroslav (FZU-D)_{RID, ORCID} Netočný, Karel (FZU-D)_{RID, ORCID} Slanina, František (FZU-D)_{RID, ORCID}
Celkový počet autorů	4
Číslo článku	032608
Zdroj.dok.	Physical Review E. - : American Physical Society - ISSN 2470-0045 Roč. 101, č. 3 (2020), s. 1-21
Poč.str.	21 s.
Jazyk dok.	eng - angličtina
Země vyd.	US - Spojené státy americké
Klíč. slova	colloidal suspensions ; transport in 1D channels ; particle separation ; generalized asymmetric exclusion process ; two different types of particles ; ratch
Vědní obor RIV	BE - Teoretická fyzika
Obor OECD	Condensed matter physics (including formerly solid state physics, supercond.)
CEP	GA17-06716S GA ČR - Grantová agentura ČR
Způsob publikování	Omezený přístup
Institucionální podpora	FZU-D - RVO:68378271
UT WOS	000521130600004
EID SCOPUS	85083413945
DOI	10.1103/PhysRevE.101.032608
Anotace	The flow of a colloidal suspension in a narrow channel of periodically varying width is described by the one-dimensional generalized asymmetric exclusion process with multiple particle occupancy. We consider particles of two different sizes. The available sites form a comblike geometry: entropic traps due to variation of channel width are modeled by pockets, attached to each site of a one-dimensional chain. This geometry, combined with periodically alternating external driving, leads to a ratchet effect which is very sensitive to particle size, thus enabling particle sorting. A typical behavior is reversal of the current orientation when we change the density of small and big particles. The two types of particles move in opposite directions, and particle separation is in principle perfect. In the simplest situation with one type of particles only, this model is exactly soluble. In the general case we use enhanced mean-field approximation as well as direct numerical simulations.
Pracoviště	Fyzikální ústav
Kontakt	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Rok sběru	2021
Elektronická adresa	https://doi.org/10.1103/PhysRevE.101.032608

Počet záznamů: 1