Rabinowitsch液的可变性对其在多孔通道中对流加热蠕动的影响（英文）

考虑液体性质的变化和对流换热的影响,研究了Rabinowitsch液在多孔通道中的蠕动机理。由于倾斜对通道壁的影响,液体的黏度沿通道厚度发生变化,而导热系数则随着温度的变化而变化。在长波长和小雷诺数近似的情况下,利用摄动法求解非线性控制方程,得到轴向速度、温度、热传递系数和流线的表达式并进行了图解分析。运用膨胀、牛顿和假塑性流体模型对上述现象进行了研究。结果表明,可变黏度、多孔参数和滑移参数对膨胀、牛顿和假塑性流体模型的流体流量有很大的影响。研究进一步揭示了由于可变黏度和多孔参数的增加而增强了俘获现象的发生。此外,可以通过适当调节倾斜角来调整所俘获的丸剂尺寸。

Biomimetic amelioration of zirconium nanoparticles on a rigid substrate over viscous slime--a physiological approach

In this article,an investigation is conducted to study the precise role of zirconium nanoparticles that exist in a slime-like fluid subject to specific adjustments.Since gliding is a technique of mobility used by bacteria that lack motility components,bacteria travel on their own strength in gliding locomotion by secreting a layer of slime on the substrate.A model of an undulating sheet over a layer of slime of a Rabinowitsch fluid is investigated as a potential model of bacteria’s gliding motility.With the aid of long wavelength approximation,the equations governing the circulation of slime underneath the cells are established and analytically solved.The effects of pseudoplasticity,dilatation and non-Newtonian parameter on the behavior of zirconium concentration,speed of microorganism(bacteria),streamline patterns,and pressure rise for non-Newtonian and Newtonian fluids are compared.The power required for propulsion is also investigated.Physical interpretation for the pertinent variables has been graphically discussed against the parameters under consideration.It is found that with the increase in the concentration of zirconium nanoparticles,the bacterial flow is accelerated and attains its maximum near the rigid substrate wall while an opposite behavior is noticed in the rest region.