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  4. Tissue fluids in microchannel subjected to an externally applied electric potential
 
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Tissue fluids in microchannel subjected to an externally applied electric potential

Journal
International Journal of Numerical Methods for Heat and Fluid Flow
Journal Volume
19
Journal Issue
1
Pages
64-77
Date Issued
2009
Author(s)
Huang, V.C.
Sheu, T.W.H.
TONY W. H. SHEU  
DOI
10.1108/09615530910922161
URI
https://scholars.lib.ntu.edu.tw/handle/123456789/451749
URL
https://www.scopus.com/inward/record.uri?eid=2-s2.0-58349102576&doi=10.1108%2f09615530910922161&partnerID=40&md5=b1c7816eb6340a50dbc71233035ebf5b
Abstract
Purpose - The purpose of this paper is to describe the development of an electroosmotic dynamic model to simulate the transport phenomena in association with the electric therapy in modern medicine. Design/methodology/approach - The present study builds a new model by employing SUPG finite element method to solve the electroosmotic transport equation in microchannels of human body. Findings - The present electroosmotic finite element analysis demonstrated that the electric treatment has a better curative effect. Research limitations/implications - The governing electric field equations for tissue fluids in microchannel include the Laplace equation for the effective electrical potential and the Helmholtz equation for the electrical potential established in the electric double layer (EDL). The transport equations governing the hydrodynamic field variables include the mass conservation equation for the electrolyte and the equations of motion for the incompressible charged fluids subject to an electroosmotic body force. Practical implications - The phenomena of microchannels are dominated by elliptic equations, Laplace, Helmholtz and diffusion equations (Navier Stokes equations at Re=0.0259). These governing equations explain why the reaction of electric treatment is very fast, even immediate. Originality/value - The analysis of the coupled hydrodynamic and electrical fields, the externally applied electric potential has been shown to be an aid to accelerate the tissue fluid due to the formation of an EDL. Interaction of plasma and tissue fluids in human body is also revealed. ? Emerald Group Publishing Limited.
Subjects
Finite element analysis; Flow; Human physiology; Hydrodynamics; Modelling
SDGs

[SDGs]SDG3

Other Subjects
Electric fields; Electric potential; Electroosmosis; Equations of motion; Finite element method; Fluid dynamics; Helmholtz equation; Hydrodynamics; Laplace equation; Laplace transforms; Medicine; Microchannels; Modal analysis; Navier Stokes equations; Physiology; Transport properties; Water recycling; Body forces; Charged fluids; Curative effects; Design/methodology/approach; Diffusion equations; Electric double layers; Electric treatments; Electrical fields; Electrical potentials; Electroosmotic; Elliptic equations; Field equations; Finite element analysis; Flow; Governing equations; Helmholtz; Human bodies; Human physiology; Hydrodynamic fields; Mass conservation equations; Modelling; Modern medicines; Navier stokes; New models; Practical implications; Transport equations; Transport phenomenons; Electric network analysis
Type
journal article

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