title: Capillary Flow Resistors: Local and Global Resistors.
abstract: The use of capillary systems in space and biotechnology applications requires the regulation of the capillary flow velocity. It has been observed that constricted sections act as flow resistors. In this work, we also show that enlarged sections temporarily reduce the velocity of the flow. In this work, the theory of the dynamics of capillary flows passing through a constricted or an enlarged channel section is presented. It is demonstrated that the physics of a capillary flow in a channel with a constriction or an enlargement is different and that a constriction acts as a global flow resistor and an enlargement as a local flow resistor. The theoretical results are checked against experimental approaches.
authors.affiliation: University Grenoble Alpes , F-38000 Grenoble, France.|Department of Biotechnology, CEA, LETI, MINATEC Campus , F-38054 Grenoble, France.
authors.forename: Jean
authors.initials: J
authors.lastname: Berthier
authors.affiliation: University Grenoble Alpes , F-38000 Grenoble, France.|Department of Biotechnology, CEA, LETI, MINATEC Campus , F-38054 Grenoble, France.
authors.forename: David
authors.initials: D
authors.lastname: Gosselin
authors.affiliation: Cain Department of Chemical Engineering, Louisiana State University , South Stadium Road, Baton Rouge, Louisiana 70803, United States.
authors.forename: Andrew
authors.initials: A
authors.lastname: Pham
authors.affiliation: University Grenoble Alpes , F-38000 Grenoble, France.|Department of Biotechnology, CEA, LETI, MINATEC Campus , F-38054 Grenoble, France.
authors.forename: Guillaume
authors.initials: G
authors.lastname: Delapierre
authors.affiliation: LGP2, Grenoble-INP Pagora, University of Grenoble , 38402 Saint-Martin d'Hères, France.
authors.forename: Naceur
authors.initials: N
authors.lastname: Belgacem
authors.affiliation: LGP2, Grenoble-INP Pagora, University of Grenoble , 38402 Saint-Martin d'Hères, France.
authors.forename: Didier
authors.initials: D
authors.lastname: Chaussy