Migration latérale de vésicules dans des microcanaux : effets des parois et du gradient de cisaillement

B. Kaoui; G. Coupier; C. Misbah; T. Podgorski

doi:10.1051/lhb/2009063

Migration latérale de vésicules dans des microcanaux : effets des parois et du gradient de cisaillement

B. Kaoui, G. Coupier, C. Misbah, T. Podgorski

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Abstract

Cross-streamline migration of a vesicle in a bounded Poiseuille flow is investigated experimentally and numerically. The combined effects of the shear gradient of the flow and of walls induce a migration of the vesicle towards the center-line of the channel. A migration law (as a function of relevant structural and flow parameters) is presented. This similarity law is compared with the laws governing the migration velocity of a vesicle in an unbounded Poiseuille flow and in a shear flow near a wall. The relative contributions of both effects are discussed.

Original language	English
Pages (from-to)	112-119
Journal	La Houille Blanche
Volume	2009
Issue number	5
DOIs	https://doi.org/10.1051/lhb/2009063
Publication status	Published - 2009

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abstract = "Cross-streamline migration of a vesicle in a bounded Poiseuille flow is investigated experimentally and numerically. The combined effects of the shear gradient of the flow and of walls induce a migration of the vesicle towards the center-line of the channel. A migration law (as a function of relevant structural and flow parameters) is presented. This similarity law is compared with the laws governing the migration velocity of a vesicle in an unbounded Poiseuille flow and in a shear flow near a wall. The relative contributions of both effects are discussed.",

author = "B. Kaoui and G. Coupier and C. Misbah and T. Podgorski",

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T1 - Migration latérale de vésicules dans des microcanaux : effets des parois et du gradient de cisaillement

AU - Kaoui, B.

AU - Coupier, G.

AU - Misbah, C.

AU - Podgorski, T.

PY - 2009

Y1 - 2009

N2 - Cross-streamline migration of a vesicle in a bounded Poiseuille flow is investigated experimentally and numerically. The combined effects of the shear gradient of the flow and of walls induce a migration of the vesicle towards the center-line of the channel. A migration law (as a function of relevant structural and flow parameters) is presented. This similarity law is compared with the laws governing the migration velocity of a vesicle in an unbounded Poiseuille flow and in a shear flow near a wall. The relative contributions of both effects are discussed.

AB - Cross-streamline migration of a vesicle in a bounded Poiseuille flow is investigated experimentally and numerically. The combined effects of the shear gradient of the flow and of walls induce a migration of the vesicle towards the center-line of the channel. A migration law (as a function of relevant structural and flow parameters) is presented. This similarity law is compared with the laws governing the migration velocity of a vesicle in an unbounded Poiseuille flow and in a shear flow near a wall. The relative contributions of both effects are discussed.

U2 - 10.1051/lhb/2009063

DO - 10.1051/lhb/2009063

M3 - Article

SN - 0018-6368

VL - 2009

SP - 112

EP - 119

JO - La Houille Blanche

JF - La Houille Blanche

IS - 5

ER -

Migration latérale de vésicules dans des microcanaux : effets des parois et du gradient de cisaillement

Abstract

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