Ion-size dependent electroosmosis of viscoelastic fluids in microfluidic channels with interfacial slip

作者: Siddhartha Mukherjee , Prakash Goswami , Jayabrata Dhar , Sunando Dasgupta , Suman Chakraborty

DOI: 10.1063/1.4990841

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摘要: We report a study on the ion-size dependent electroosmosis of viscoelastic fluids in microfluidic channels with interfacial slip. Here, we derive an analytical solution for potential distribution parallel plate microchannel, where effects finite sized ionic species are taken into account by invoking free energy formalism. Following this, purely electroosmotic flow simplified Phan-Thien-Tanner (sPTT) fluid is considered. For sPTT model, linear, quadratic, and exponential kernels chosen stress coefficient function describing its nature across various ranges Deborah number. The theoretical framework presented our analysis has been successfully compared experimental results available literature. believe that implications considered net volumetric throughput will not only provide deeper insight to interpret electrokinetic data presence but also serve as fundamental ...

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