Analytical Solution of Mixed Electroosmotic/ Pressure Driven Flow of Viscoelastic Fluids between a Parallel Flat Plates Micro-Channel: The Maxwell Model Using the Oldroyd and Jaumann Time Derivatives.
作者： Laura Casas , José A. Ortega , Aldo Gómez , Juan Escandón , René O. Vargas
DOI: 10.3390/MI11110986
关键词: Volumetric flow rate 、 Rotation 、 Flow (mathematics) 、 Microchannel 、 Electrokinetic phenomena 、 Shear (sheet metal) 、 Mechanics 、 Deformation (mechanics) 、 Viscoelasticity 、 Materials science
摘要: In the present work, an analytical approximate solution of mixed electroosmotic/pressure driven flow viscoelastic fluids between a parallel plates microchannel is reported. Inserting Oldroyd, Jaumann, or both time derivatives into Maxwell model, important differences in velocity profiles were found. The presence shear and normal stresses only close to wall. This model can be used as tool understand behavior low viscosity fluids, most them experiment on translation, deformation rotation flow. For practical applications, volumetric rate controlled with two parameters, namely gradient pressure electrokinetic parameter, once fluid has been rheologically characterized.
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