Irreversibility minimization analysis of ferromagnetic Oldroyd-B nanofluid flow under the influence of a magnetic dipole

Abstract

Studies highlighting nanoparticles suspensions and flow attributes in the context of their application are the subject of current research. In particular, the utilization of these materials in biomedical rheological models has gained great attention. Magneto nanoparticles have a decisive role in the ferrofluid flows to regulate their viscoelastic physiognomies. Having such substantial interest in the flow of ferrofluids our objective is to elaborate the melting heat transfer impact in a stretched Oldroyd-B flow owing to a magnetic dipole in the presence of entropy generation optimization. Buongiorno nanofluid model expounding thermophoretic and Brownian features are considered. Moreover, activation energy with chemical reaction is also considered. The Cattaneo–Christov heat flux model is affianced instead of conventional Fourier law. The renowned bvp4c function of MATLAB is utilized to handle the nonlinearity of the system. Impacts of miscellaneous parameters are portrayed through graphical fallouts and numeric statistics. Results divulge that the velocity and temperature profiles show the opposite trend for growing estimates of the ferromagnetic parameter. It is also noticed that the temperature ratio parameter diminishes the entropy profile. Moreover, it is seen that the concentration profile displays a dwindling trend for the Brownian motion parameter and the opposite trend is witnessed for the thermophoretic parameter.

Performance-based comparison of Yamada–Ota and Hamilton–Crosser hybrid nanofluid flow models with magnetic dipole impact past a stretched surface

“…Table 4 is designed for the values of Prandtl number ( ) when compared with Chen 33 and Ramzan et al 4 by keeping the extra parameters’ values zero. An excellent correlation between the values is attained.…”

“…The model equations are expressed considering the above assumptions 4 , 9 , 27 : with a set of subsequent conditions: …”

“…The finite difference implicit approach of the Crank–Nicolson type is used to get numerical results. Ramzan et al 4 considered Oldroyd-B ferromagnetic nanofluid flow with magnetic dipole over an extended stretching sheet. Some recent applications for magnetic dipole may be found in Refs.…”

Magnetic Dipole and Thermophoretic Particle Deposition Impact on Bioconvective Oldroyd-B Fluid Flow over a Stretching Surface with Cattaneo–Christov Heat Flux

“…Hayat et al [3] used an exponentially stretching sheet to analyze the boundary layer flow effects of Oldroyd-B fluid. Ramzan et al [4] discovered the effects of the magnetic dipole on ferromagnetic Oldroyd-B nanofluid flow. An Oldroyd-B nanofluid flow with heat generation and stratification are elaborated by Waqas et al [5].…”

Comparative Numerical Study of Thermal Features Analysis between Oldroyd-B Copper and Molybdenum Disulfide Nanoparticles in Engine-Oil-Based Nanofluids Flow

“…The OBF contains viscoelastic applications for Maxwell and viscous fluids for example. Based on such remarkable properties, the flow of OBF was thoroughly investigated in the literature [11][12][13][14][15][16][17][18]. Moreover, researchers have explained the effect of slip boundary conditions in nanofluids past the extending slip [19,20].…”