RETRACTED: Applications of bioconvection for tiny particles due to two concentric cylinders when role of Lorentz force is significant (Retracted article. See vol. 20, 2025)

被引:28
作者
Zhang, Lei [1 ,2 ]
Puneeth, V [3 ]
Khan, Muhammad Ijaz [4 ]
El-Zahar, Essam Roshdy [5 ,6 ]
Manjunath, N. [7 ]
Shah, Nehad Ali [8 ]
Chung, Jae Dong [8 ]
Khan, Sami Ullah [9 ]
Khan, M. Imran [10 ]
机构
[1] YRCC, Yellow River Inst Hydraul Res, Zhengzhou, Henan, Peoples R China
[2] Henan Engn Res Ctr Hydropower Engn Abras Test & P, Zhengzhou, Peoples R China
[3] CHRIST Deemed Univ, Dept Math, Bengaluru, India
[4] Riphah Int Univ, Dept Math & Stat, Islamabad, Pakistan
[5] Prince Sattam Bin Abdulaziz Univ, Coll Sci & Humanities Al Kharj, Dept Math, Al Kharj, Saudi Arabia
[6] Menoufia Univ, Fac Engn, Dept Basic Engn Sci, Shibin Al Kawm, Egypt
[7] CHRIST Deemed Univ, Dept Sci & Humanities, Bengaluru, India
[8] Sejong Univ, Dept Mech Engn, Seoul, South Korea
[9] COMSATS Univ Islamabad, Dept Math, Sahiwal, Pakistan
[10] Hamad Bin Khalifa Univ, Qatar Fdn, Coll Sci & Engn, Div Sustainable Dev, Doha, Qatar
关键词
NONLINEAR THERMAL-RADIATION; NANOFLUID FLOW; HEAT-TRANSFER; GYROTACTIC MICROORGANISMS; MHD; THERMOPHORESIS; DYNAMICS; SURFACE; MOTION; IMPACT;
D O I
10.1371/journal.pone.0265026
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The bioconvection flow of tiny fluid conveying the nanoparticles has been investigated between two concentric cylinders. The contribution of Lorenz force is also focused to inspect the bioconvection thermal transport of tiny particles. The tiny particles are assumed to flow between two concentric cylinders of different radii. The first cylinder remains at rest while flow is induced due to second cylinder which rotates with uniform velocity. Furthermore, the movement of tiny particles follows the principle of thermophoresis and Brownian motion as a part of thermal and mass gradient. Similarly, the gyro-tactic microorganisms swim in the nanofluid as a response to the density gradient and constitute bio-convection. The problem is modeled by using the certain laws. The numerical outcomes are computed by using RKF-45 method. The graphical simulations are performed for flow parameters with specific range like 1 <= Re<5, 1 <= Ha <= 5, 0.5 <= Nt <= 2.5, 1 <= Nb <= 3, 0.2 <= Sc <= 1.8, 0.2 <= Pe <= 1.0 and 0.2 <=Omega <= 1.0. is observed that the flow velocity decreases with the increase in the Hartmann number that signifies the magnetic field. This outcome indicates that the flow velocity can be controlled externally through the magnetic field. Also, the increase in the Schmidt numbers increases the nanoparticle concentration and the motile density.
引用
收藏
页数:13
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