Abstract
ABSTRACT The target of this article is to perceive the effects of the externally applied magnetic force on an unsteady nanofluid flow in the occurrence of carbon nanotubes with water as a base fluid. The flow is caused by a rotating and wavy spinning permeable disk where the disk is continuously moving vertically upward and downward. 3D nanofluid flow is created by a spinning and vertically moving disk. A study of the passive and active mass flux of nanoparticles is presented in this work. The problem is solved by the Runge–Kutta–Fehlberg 45 (RKF 45) method in the mathematical software MAPLE. The outcomes of the present work are compared to the results communicated previously. The physical measures are exemplified pictorially in thermal and concentration fields. 2D contour phenomenon and 3D flow conceptions for some pertinent parametersare also sketched. There is a slight difference in temperature and concentration profiles between MWCNTs and SWCNTs. It is detected that in the presence of active and passive control, the thermal energy profile shows decreasing behaviour by the fluctuating parameter; however, the concentration profile exhibits dual nature under passive control.
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