Yu Yangyang, Madhukesh Javali K, Khan Umair, Zaib Aurang, Abdel-Aty Abdel-Haleem, Yahia Ibrahim S, Alqahtani Mohammed S, Wang Fuzhang, Galal Ahmed M
School of Mathematics and Statistics, Xuzhou University of Technology, Xuzhou 221018, China.
Department of Mathematics, Nanchang Institute of Technology, Nanchang 330044, China.
Nanomaterials (Basel). 2022 Mar 16;12(6):977. doi: 10.3390/nano12060977.
The purpose of this research is to investigate the consequence of thermophoretic particle deposition (TPD) on the movement of a TiO/water-based micropolar nanoliquid surface in the existence of a porous medium, a heat source/sink, and bioconvection. Movement, temperature, and mass transfer measurements are also performed in the attendance and nonappearance of nanoparticle aggregation. The nonlinear partial differential equations are transformed into a system of ordinary differential equations using appropriate similarity factors, and numerical research is carried out using the Runge-Kutta-Felhberg 4th/5th order and shooting technique. The obtained results show that improved values of the porous constraint will decline the velocity profile. Improvement in heat source/sink parameter directly affects the temperature profile. Thermophoretic parameter, bioconvection Peclet number, and Lewis number decrease the concentration and bioconvection profiles. Increases in the heat source/sink constraint and solid volume fraction will advance the rate of thermal dispersion. Nanoparticle with aggregation exhibits less impact in case of velocity profile, but shows a greater impact on temperature, concentration, and bioconvection profiles.
本研究的目的是研究在存在多孔介质、热源/热汇和生物对流的情况下，热泳粒子沉积（TPD）对TiO/水基微极性纳米流体表面运动的影响。在纳米颗粒聚集存在和不存在的情况下，还进行了运动、温度和传质测量。使用适当的相似因子将非线性偏微分方程转化为常微分方程组，并采用龙格-库塔-费尔贝格4阶/5阶方法和打靶技术进行数值研究。所得结果表明，多孔介质约束值的提高将降低速度分布。热源/热汇参数的改善直接影响温度分布。热泳参数、生物对流佩克莱数和刘易斯数会降低浓度和生物对流分布。热源/热汇约束和固体体积分数的增加将提高热扩散速率。聚集的纳米颗粒在速度分布情况下影响较小，但对温度、浓度和生物对流分布影响较大。
