Chirality-specific lift forces of helix under shear flows: Helix perpendicular to shear plane.
Chirality
; 29(2): 97-102, 2017 Feb.
Article
em En
| MEDLINE
| ID: mdl-28019677
ABSTRACT
Chiral objects in shear flow experience a chirality-specific lift force. Shear flows past helices in a low Reynolds number regime were studied using slender-body theory. The chirality-specific lift forces in the vorticity direction experienced by helices are dominated by a set of helix geometry parameters helix radius, pitch length, number of turns, and helix phase angle. Its analytical formula is given. The chirality-specific forces are the physical reasons for the chiral separation of helices in shear flow. Our results are well supported by the latest experimental observations.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Chirality
Ano de publicação:
2017
Tipo de documento:
Article