Numerical investigation of radiative blood-based aluminum alloys nanofluid over a convective Riga sensor plate with the impact of diverse particle shape.

Pattnaik, P. K.; Mishra, S. R.; Thumma, Thirupathi; Panda, Subhajit; Ontela, Surender

Hybrid nanofluids have wide-ranging applications in various domains such as engineering, manufacturing, biomedicine, etc. Inspired from these practical implementations, the present investigation intended to the convective transport phenomena of radiative blood flow over a Riga plate. Additionally, the dispersion and movement of nanoparticles composed of aluminum alloys particles AA7072 and AA7075 are examined by considering the concentration specifically up to 6%. An essential geometric factor in particular, the particle shape, is studied to realize its impact on the convective dynamics of the system. Further, the inclusion of thermal radiation vis-à-vis heat source impact is elucidate by incorporating their impact on the energy transport phenomenon. The proposed designed problem equipped with the afore-mentioned phenomena are formed a set of non-linear partial differential equations. To standardize the governing set of partial differential equations and their corresponding boundary conditions, appropriate similarity transformations are applied. Subsequently, these transformed ordinary differential equations were effectively solved using the bvp4c solver, utilizing the shooting-based Runge–Kutta fourth-order technique facilitated by MATLAB software. The outcomes of these influencing factors were observed and briefly analyzed through graphical representations. Notably, the effects of pertinent parameters on shear stress and heat transfer rates are briefly presented in tabular formats. The important outcomes of the results are depicted as; the attenuation in the velocity distribution due to the enhanced particle concentration lead to augments the velocity bounding surface thickness. However, heat transfer through Riga stretching surface is dominated by Riga shrinking surface.

ALUMINUM alloys; BOUNDARY value problems; NONLINEAR differential equations; PARTIAL differential equations; ORDINARY differential equations; FREE convection

Journal of Thermal Analysis & Calorimetry, 2024, Vol 149, Issue 5, p2317

1388-6150

Academic Journal

10.1007/s10973-023-12820-y