Unsteady Carbon Nanotubes Nanofluid Flow due to a Moving Cylinder with Thermal Radiation and Temperature Oscillation Effects

This paper discusses transient two-dimensional boundary layer laminar viscous incompressible free convective flow of nanofluids containing carbon nanotubes (SWCNTs and MWCNTs) over a moving vertical cylinder in the presence of thermal radiation and temperature oscillation. The governing boundary layer equations are converted to a dimensionless form and then solved using the Crank Nicolson type's unconditionally stable and convergent implicit finite difference method. With diverse parameters such as Grashof number (Gr), volume fraction (⠂), phase angle (⠃t), and thermal radiation parameter (N), numerical results are achieved for velocity and temperature profiles along with Nusselt number and skin friction coefficients. The numerical results are analysed in detail using graphs for both water-based nanofluid and kerosene-based nanofluids with single and multi-wall carbon nanotubes as the nanomaterials. It has been found that CNTs Water-based nanofluid has higher temperatures, velocities, skin friction coefficient vlues for all Gr, N, ⠂, and ⠃t when compared IP: 203.8.109.20 On: Tue, 09 May 2023 06:47:07 to kerosene-based nanofluid with NTs. But, Kerosee-based CNTs nanofluid has a higher Nusselt number Copyright: American Scientific Publishers coefficient values concerning all Gr, N, ⠂, and ⠃tthan water-based CNTs nanofluid. Delivered by Ingenta