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<p>This paper investigates the mechanism of entropy generation in unsteady electroosmotic Cross fluid flow, modeled as blood, under the Debye–Hückel approximation through a porous horizontal microchannel with mild overlapping stenoses. The study incorporates a variable viscosity model (variable hematocrit). The finite difference technique is employed to solve the system of nonlinear governing equations. The results illustrate the impact of various parameters on velocity, temperature, concentration, and entropy production profiles. A significant finding is that increasing the hematocrit parameter reduces blood velocity due to the higher concentration of red blood cells. Additionally, an increase in the Joule heating parameter results in higher entropy generation.</p>

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Entropy generation of unsteady pulsatile electroosmotic blood flow through porous diseased artery: a variable viscosity model and Debye–Hückel approximation

  • 期刊论文

  • 发表日期：

    2026年1月5日

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  • M. A. El Kot,
  • Y. Abd Elmaboud

摘要

This paper investigates the mechanism of entropy generation in unsteady electroosmotic Cross fluid flow, modeled as blood, under the Debye–Hückel approximation through a porous horizontal microchannel with mild overlapping stenoses. The study incorporates a variable viscosity model (variable hematocrit). The finite difference technique is employed to solve the system of nonlinear governing equations. The results illustrate the impact of various parameters on velocity, temperature, concentration, and entropy production profiles. A significant finding is that increasing the hematocrit parameter reduces blood velocity due to the higher concentration of red blood cells. Additionally, an increase in the Joule heating parameter results in higher entropy generation.