An induced magnetic field utilization for hybrid nanoliquid flow subject to entropy generation

Abstract

Background and objectiveNanotechnology has significance in crack-resistance paint, engine cooling, enhance-oil recovery, nuclear reactor cooling, drug delivery, microelectronics, production of paper, thermal power plants etc. Here stagnation point flow of hybrid (Ta+Ni/Keroseneoil) nanoliquid subject to entropy optimization is addressed. Tantalum (Ta) and nickel (Ni) nanoparticles in base liquid (Keroseneoil) are accounted. Induced magnetic field characteristics are considered. Dissipation, heat generation and radiation have been examined. MethodologyAdequate transformations lead to development of ODEs from PDEs. The resultant non-dimensional systems are numerically computed through ND-solve method. ResultsThermal transport rate and coefficient of skin friction under influence of sundry variables for hybrid (Ta+Ni/Keroseneoil) nanomaterial and nanoliquid (Ta/Keroseneoil) are numerically explored. The consequences of influential variables (magnetic variable, radiation variable, Prandtl number, Eckert number, heat generation variable, stretching ratio variable, Darcy number and reciprocal magnetic Prandtl number) on liquid flow, induced magnetic field, temperature and entropy rate for hybrid (Ta+Ni/Keroseneoil) nanomaterial and nanoliquid (Ta/Keroseneoil) are graphically analyzed. Clearly there is decay of velocity for magnetic field. Induced magnetic field increases through higher magnetic variable. Higher radiation variable corresponds to intensify the temperature and entropy rate. Thermal field rises against solid volume fraction. Drag force by higher Darcy number is decreased. Magnetic Prandtl number yields decay in skin friction. Thermal transport rate through heat generation and radiation is enhanced.