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

作　　者：S.I.ABDELSALAM A.Z.ZAHER 

机构地区：[1]Instituto de Ciencias MatemHu DINGticas ICMAT,Madrid 28049,Spain [2]Basic Science,Faculty of Engineering,The British University in Egypt,Al-Shorouk City,Cairo 11837,Egypt [3]Basic Science Department,Faculty of Engineering,Shubra-Benha University,Cairo 11884,Egypt

出　　处：《Applied Mathematics and Mechanics(English Edition)》2023年第9期1563-1576,共14页应用数学和力学（英文版）

基　　金：Fundación Mujeres poráfrica for supporting this work through the fellowship awarded to her in 2020。

摘　　要：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.

关 键 词：zirconium nanoparticle gliding bacterium Grashof heat transfer glider's speed Rabinowitsch fluid 

分 类 号：O361[理学—流体力学]