Multiphysics equivalent circuit of a thermally controlled hydrogel microvalve
| Autor: | Voigt, Andreas, Marschner, Uwe, Richter, Andreas |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Circuit representation
equivalent circuit microvalve multiphysics modeling network modeling stimuli-responsive hydrogels stimuli-sensitive hydrogels thermal control Schaltkreisdarstellung Ersatzschaltung Mikroventil Multiphysik-Modellierung Netzwerkmodellierung stimulierungsempfindliche Hydrogele thermische Kontrolle info:eu-repo/classification/ddc/600 ddc:600 info:eu-repo/classification/ddc/670 ddc:670 |
| Druh dokumentu: | Článek |
| ISSN: | 1530-8138 |
| DOI: | 10.1177/1045389X16685445 |
| Popis: | Temperature-responsive hydrogels are polymer particles whose equilibrium size depends on the temperature of the water they are immersed in. Here we present an equivalent circuit model of a temperature-controlled microvalve based on hydrogel particles. The resulting network model consists of three physical subsystems. The thermal subsystem considers the heat capacities and thermal resistances of the layers of the valve and the coupling to the ambient environment. The polymeric subsystem describes the relaxation of the hydrogel particles to the temperature-dependent equilibrium size. The fluidic subsystem consists of the supply channel and a chamber whose cross section varies according to the size of the hydrogel particles. All subsystems are described and coupled within one single circuit. Thus the transient behavior of the valve can be calculated using a circuit simulator. Simulation results for a setup are presented and compared with experiments. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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