Flow of hybrid CNTs past a rotating sphere subjected to thermal radiation and thermophoretic particle deposition

Thermal radiation and thermophoretic particle deposition have important applications in research and engineering. These two principles are employed in practical applications such as electrical fuel, projectiles, thermal transportation, renewable energy, nuclear power plants, gas tur-bines, and aerospace engineering. In light of the aforementioned applications, the current study investigates the stagnation point hybrid CNTs movement around a rotating sphere in the existence of thermal radiation and thermophoretic particle deposition. Using appropriate similarity factors, nonlinear governing equations are converted into ordinary differential equations. The Runge Kutta Fehlberg 45 (RKF-45) order and a shooting approach are used to find the numerical results of the simplified equations and boundary conditions. The numerical findings are presented graphically. It is explored how different limitations impact their individual profiles. According to the research, pri-mary velocity increases with acceleration parameter but decreases with secondary velocity. As the radiation parameter value increases, so does the thermal distribution. Concentration decreases as both the Schmidt number and the thermophoretic parameter decrease. The heat dispersion rate heightens as the percentage of volume fraction of solid and the radiation parameter increase. Mano CNTs have a higher primary velocity than hybrid CNTs.(c) 2022 THE AUTHORS. Published by Elsevier BV on behalf of Faculty of Engineering, Alexandria University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).

Automated summary

Thermal radiation and thermophoretic particle deposition have important applications in research and engineering. This study investigates the movement of hybrid carbon nanotubes (CNTs) around a rotating sphere with the presence of thermal radiation and thermophoretic particle deposition. Nonlinear governing equations are converted into ordinary differential equations using similarity factors. Numerical results and graphical presentations are obtained using the Runge Kutta Fehlberg 45 order and a shooting approach. The study explores the impact of different limitations on the characteristics of the CNTs.