In-depth description of electrohydrodynamic conduction pumping of dielectric liquids: Physical model and regime analysis
| Autor: | Michal Talmor, Philippe Traoré, Miad Yazdani, P.A. Vazquez, Jamal Seyed-Yagoobi |
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| Přispěvatelé: | Departamento de Fisica Aplicada III, Escuela Superior de Ingenieros, Electro-Fluido-Dynamique (EFD ), Département Fluides, Thermique et Combustion (FTC), Institut Pprime (PPRIME), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Institut Pprime (PPRIME), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS), Universidad de Sevilla. Departamento de Física Aplicada III, Universidad de Sevilla. FQM253: Electrohidrodinamica y Medios Granulares Cohesivos |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Electrical double layers
[PHYS.MPHY]Physics [physics]/Mathematical Physics [math-ph] Computational Mechanics Physics::Optics Dielectric 01 natural sciences 010305 fluids & plasmas [SPI.AUTO]Engineering Sciences [physics]/Automatic Dielectric materials Electrolytes [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph] Electrical resistivity and conductivity Electrostatics Electric field 0103 physical sciences Electrohidrodynamics Electrical conductivity Electrochemistry Thermodynamic states and processes [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] [PHYS.MECA.BIOM]Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph] Conduction Pumping 010302 applied physics Fluid Flow and Transfer Processes Physics [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph] [PHYS.MECA.VIBR]Physics [physics]/Mechanics [physics]/Vibrations [physics.class-ph] Electrohydrodynamics Mechanical Engineering [SPI.FLUID]Engineering Sciences [physics]/Reactive fluid environment [SPI.NRJ]Engineering Sciences [physics]/Electric power Mechanics [CHIM.MATE]Chemical Sciences/Material chemistry [PHYS.MECA.MSMECA]Physics [physics]/Mechanics [physics]/Materials and structures in mechanics [physics.class-ph] Condensed Matter Physics Thermal conduction [PHYS.MECA.ACOU]Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph] [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism [CHIM.POLY]Chemical Sciences/Polymers Mechanics of Materials [PHYS.MECA.THER]Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph] Mathematical modeling Electroosmosis Saturation (chemistry) Dimensionless quantity |
| Zdroj: | Physics of Fluids Physics of Fluids, American Institute of Physics, 2019, 31 (11), pp.113601. ⟨10.1063/1.5121164⟩ idUS. Depósito de Investigación de la Universidad de Sevilla instname |
| ISSN: | 1070-6631 1089-7666 |
| DOI: | 10.1063/1.5121164⟩ |
| Popis: | In this work, we discuss the fundamental aspects of Electrohydrodynamic (EHD) conduction pumping of dielectric liquids. We build a mathematical model of conduction pumping that can be applied to all sizes, down to microsized pumps. In order to do this, we discuss the relevance of the Electrical Double Layer (EDL) that appears naturally on nonmetallic substrates. In the process, we identify a new dimensionless parameter related to the value of the zeta potential of the substrate-liquid pair, which quantifies the influence of these EDLs on the performance of the pump. This parameter also describes the transition from EHD conduction pumping to electro-osmosis. We also discuss in detail the two limiting working regimes in EHD conduction pumping: ohmic and saturation. We introduce a new dimensionless parameter, accounting for the electric field enhanced dissociation that, along with the conduction number, allows us to identify in which regime the pump operates. Ministerio de Ciencia, Innovación y Universidades PGC2018-099217-B-I00 |
| Databáze: | OpenAIRE |
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