Multiple slip impact on the micropolar tri-hybrid nanofluid composed of CNT–Cu/water over an expanding surface: Spectral weighted residual scheme

The advanced thermal management, a growing demand in microscale devices, and biomedical technologies present extensive studies into enhanced heat transfer mechanisms. Among the various fluids, tri-hybrid nanofluids within the base liquid water show a promising fluid because of their superior thermal conductivity. The ongoing analysis deliberates the flowing of micropolar tri-hybrid nanofluid composed of single-walled carbon nanotubes (SWCNT), multi-walled carbon nanotubes (MWCNT), and copper (Cu) nanoparticles dispersed in water over an expanding surface under the interpretation of multiple slip conditions. In general, the present configuration is motivated by real-world applications, likely nanocoating technology, cooling of electronic equipment, etc. The current analysis integrates the velocity and thermal slip with the dissipative heat, such as viscous Joule and Darcy dissipation has a more realistic behavior on the flow phenomena. The mathematical model proposed for the said assumptions is transformed into dimensionless form and then handled numerically utilizing a spectral weighted residual scheme for the combined effect of various factors. The validation of the existing outcomes compared with the earlier investigation found them to be in good correlation.