Purpose

Studying the shear stress and pressure resulting on the walls of blood vessels, especially during high-pressure cases, which may lead to the explosion or rupture of these vessels, can also lead to the death of many patients. Therefore, it was necessary to try to control the shear and normal stresses on these veins through nanoparticles in the presence of some external forces, such as exposure to some electromagnetic shocks, to reduce the risk of high pressure and stress on those blood vessels. This study aims to examines the shear and normal stresses of electroosmotic-magnetized Sutterby Buongiorno’s nanofluid in a symmetric peristaltic channel with a moderate Reynolds number and curvature. The production of thermal radiation is also considered. Sutterby nanofluids equations of motion, energy equation, nanoparticles concentration, induced magnetic field and electric potential are calculated without approximation using small and long wavelengths with moderate Reynolds numbers.

Design/methodology/approach

The Adomian decomposition method solves the nonlinear partial differential equations with related boundary conditions. Graphs and tables show flow features and biophysical factors like shear and normal stresses.

Findings

This study found that when curvature and a moderate Reynolds number are present, the non-Newtonian Sutterby fluid raises shear stress across all domains due to velocity decay, resulting in high shear stress. Additionally, modest mobility increases shear stress across all channel domains. The Sutterby parameter causes fluid motion resistance, which results in low energy generation and a decrease in the temperature distribution.

Originality/value

Equations of motion, energy equation, nanoparticle concentration, induced magnetic field and electric potential for Sutterby nano-fluids are obtained without any approximation i.e. the authors take small and long wavelengths and also moderate Reynolds numbers.

中文翻译：

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电渗磁化生理纳米流体在中等雷诺数弯曲动脉上的剪切应力和法向应力：在电休克治疗中的应用

 目的

研究血管壁上产生的剪切应力和压力，尤其是在高压情况下，可能导致这些血管爆炸或破裂，也可能导致许多患者死亡。因此，在存在某些外力（例如暴露于电磁冲击）的情况下，有必要尝试通过纳米颗粒控制这些静脉上的剪切应力和法向应力，以降低这些血管承受高压和应力的风险。本研究旨在检查电渗磁化 Sutterby Buongiorno 纳米流体在具有中等雷诺数和曲率的对称蠕动通道中的剪切应力和法向应力。还考虑了热辐射的产生。使用具有中等雷诺数的短波长和长波长，无需近似即可计算萨特比纳米流体运动方程、能量方程、纳米粒子浓度、感应磁场和电势。

设计/方法论/途径

Adomian 分解方法求解具有相关边界条件的非线性偏微分方程。图表显示流动特征和生物物理因素，如剪切应力和法向应力。

 发现

这项研究发现，当存在曲率和中等雷诺数时，非牛顿萨特比流体会因速度衰减而提高所有域的剪切应力，从而导致高剪切应力。此外，适度的迁移率会增加所有通道域的剪切应力。 Sutterby 参数会导致流体运动阻力，从而导致能量产生低和温度分布减小。

 原创性/价值

萨特比纳米流体的运动方程、能量方程、纳米粒子浓度、感应磁场和电势是在没有任何近似的情况下获得的，即作者采用小而长的波长以及适度的雷诺数。