Vorticity Determines the Force on Bodies Immersed in Active Fluids

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • Thomas Speck
  • Ashreya Jayaram
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000652826600006&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1103/PhysRevLett.126.138002
eISSN
1079-7114
Externe Identifier
  • Clarivate Analytics Document Solution ID: SF5WW
  • PubMed Identifier: 33861089
ISSN
0031-9007
Ausgabe der Veröffentlichung
13
Zeitschrift
PHYSICAL REVIEW LETTERS
Artikelnummer
ARTN 138002
Datum der Veröffentlichung
2021
Status
Published
Titel
Vorticity Determines the Force on Bodies Immersed in Active Fluids
Sub types
  • Article
Ausgabe der Zeitschrift
126

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Autoren
  • Thomas Speck
  • Ashreya Jayaram
DOI
10.1103/physrevlett.126.138002
eISSN
1079-7114
ISSN
0031-9007
Ausgabe der Veröffentlichung
13
Zeitschrift
Physical Review Letters
Sprache
en
Artikelnummer
138002
Online publication date
2021
Status
Published online
Herausgeber
American Physical Society (APS)
Herausgeber URL
http://dx.doi.org/10.1103/physrevlett.126.138002
Datum der Datenerfassung
2021
Titel
Vorticity Determines the Force on Bodies Immersed in Active Fluids
Ausgabe der Zeitschrift
126

Datenquelle: Crossref

Abstract
When immersed into a fluid of active Brownian particles, passive bodies might start to undergo linear or angular directed motion depending on their shape. Here we exploit the divergence theorem to relate the forces responsible for this motion to the density and current induced by-but far away from-the body. In general, the force is composed of two contributions: due to the strength of the dipolar field component and due to particles leaving the boundary, generating a nonvanishing vorticity of the polarization. We derive and numerically corroborate results for periodic systems, which are fundamentally different from unbounded systems with forces that scale with the area of the system. We demonstrate that vorticity is localized close to the body and to points at which the local curvature changes, enabling the rational design of particle shapes with desired propulsion properties.
Addresses
  • Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7-9, 55128 Mainz, Germany.
Autoren
  • Thomas Speck
  • Ashreya Jayaram
DOI
10.1103/physrevlett.126.138002
eISSN
1079-7114
Externe Identifier
  • PubMed Identifier: 33861089
Funding acknowledgements
  • Deutsche Forschungsgemeinschaft: 404840447
  • Deutsche Forschungsgemeinschaft: 254473714
Open access
false
ISSN
0031-9007
Ausgabe der Veröffentlichung
13
Zeitschrift
Physical review letters
Sprache
eng
Medium
Print
Paginierung
138002
Datum der Veröffentlichung
2021
Status
Published
Datum der Datenerfassung
2021
Titel
Vorticity Determines the Force on Bodies Immersed in Active Fluids.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
126

Datenquelle: Europe PubMed Central

Abstract
When immersed into a fluid of active Brownian particles, passive bodies might start to undergo linear or angular directed motion depending on their shape. Here we exploit the divergence theorem to relate the forces responsible for this motion to the density and current induced by-but far away from-the body. In general, the force is composed of two contributions: due to the strength of the dipolar field component and due to particles leaving the boundary, generating a nonvanishing vorticity of the polarization. We derive and numerically corroborate results for periodic systems, which are fundamentally different from unbounded systems with forces that scale with the area of the system. We demonstrate that vorticity is localized close to the body and to points at which the local curvature changes, enabling the rational design of particle shapes with desired propulsion properties.
Date of acceptance
2021
Autoren
  • Thomas Speck
  • Ashreya Jayaram
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/33861089
DOI
10.1103/PhysRevLett.126.138002
eISSN
1079-7114
Ausgabe der Veröffentlichung
13
Zeitschrift
Phys Rev Lett
Sprache
eng
Country
United States
Paginierung
138002
Datum der Veröffentlichung
2021
Status
Published
Titel
Vorticity Determines the Force on Bodies Immersed in Active Fluids.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
126

Datenquelle: PubMed

Abstract
When immersed into a fluid of active Brownian particles, passive bodies might start to undergo linear or angular directed motion depending on their shape. Here we exploit the divergence theorem to relate the forces responsible for this motion to the density and current induced by--but far away from--the body. In general, the force is composed of two contributions: due to the strength of the dipolar field component and due to particles leaving the boundary, generating a non-vanishing vorticity of the polarization. We derive and numerically corroborate results for periodic systems, which are fundamentally different from unbounded systems with forces that scale with the area of the system. We demonstrate that vorticity is localized close to the body and to points at which the local curvature changes, enabling the rational design of particle shapes with desired propulsion properties.
Autoren
  • Thomas Speck
  • Ashreya Jayaram
Autoren-URL
http://arxiv.org/abs/2103.06672v1
Schlüsselwörter
  • cond-mat.soft
  • cond-mat.soft
  • cond-mat.stat-mech
Notes
To appear in Phys. Rev. Lett
Datum der Veröffentlichung
2021
Herausgeber URL
http://dx.doi.org/10.1103/PhysRevLett.126.138002
Datum der Datenerfassung
2021
Datum, an dem der Datensatz öffentlich gemacht wurde
2021
Titel
Vorticity Determines the Force on Bodies Immersed in Active Fluids

Files

2103.06672v1.pdf

Datenquelle: arXiv

Beziehungen:
Eigentum von

Werkzeuge