Electric double layer and thermal radiation effects on micropolar blood particles conveying Cu-MoS2-CuO nanoparticles in squeezed arterial channel

Abstract

The rotational motion of the blood particles in the squeezed arterial channel is important for advancing biomedical applications such as targeted drug delivery and diagnostic devices. In the present framework, we study the rotational motion of the blood particles and electric double layer (EDL) flow containing molybdenum disulfide $\left(\text{Mo}{S}_2\right)\text{,}$ copper oxide (CuO), copper (Cu) ternary nanofluid in an arterial squeezed channel. To enhance the model's novelty, the Poisson-Boltzmann equation is utilized with the Debye-Hückel approximation to estimate the electric potential accurately. Also, we explore the impact of thermal radiation mechanisms along with thermal slip and heat sources to better understand heat transfer phenomena. The arising differential system composed of momentum, and temperature equations is treated through a numerical approach called the finite element method. Results demonstrate that an increase in the Hartmann number leads to a reduction in velocity profiles by up to 30 %, while a higher zeta potential parameter enhances flow velocity by 15 %. Additionally, microrotation of blood particles increases by 20 % with elevated vortex viscosity. Thermal radiation significantly improves heat transfer rates, as evidenced by an 18 % rise in the Nusselt number under intensified thermal slip conditions. These findings present critical insights for optimizing biomedical flows and heat transfer mechanisms in engineering applications.