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Computation Of Convective Magnetohydrodynamic Buongiorno Nanofluid Transport From An Inclined Plane With Ion Slip And Hall Current Effects

Anjum, Asra; Abdul Gaffar, S; Kumar, D Sateesh; Bég, O Anwar; Samdani

Authors

Asra Anjum

S Abdul Gaffar

D Sateesh Kumar

Samdani



Contributors

Abstract

Currently, base fluids are being replaced with nanofluids as working fluids owing to their exceptional thermal conductivities. One highly advantageous property of nanoparticles is their ability to enhance thermal properties of coatings for a range of applications in aerospace, energy and industrial systems. Motivated by these applications, in this paper the steady-state laminar boundary layer flow of a magnetized Buongiorno's incompressible nanofluid from an inclined surface (substrate) with Hall and ion slip current effects is investigated theoretically and computationally. The research is driven by the growing need for smart functional magnetic nanomaterials applications. The versatile second-order accurate implicit finite-difference Keller Box technique is used to solve the dimensionless nonlinear boundary value problem with associated wall and free stream boundary constraints. Validation is achieved with special cases found in the literature. The influence of Brownian motion parameters (Nb), thermophoresis parameters (Nt), buoyancy ratio (Nr), magnetic interaction parameter (M), Richardson number (Ri), Hall current (e) and Ion slip parameter (i) is illustrated graphically for primary and secondary velocity components, temperature, and nanoparticle concentration distributions. Additionally, tables for the values of the Nusselt number, Sherwood number for specific parameters as well as primary and secondary skin friction are given. The computations show that with increasing inclination of the substrate (), a strong decrement is computed in primary skin friction (Cfx), secondary skin friction (Cfy), Nusselt number (Nu), and Sherwood number (Sh). When Hall current is neglected, i.e. βe =0, the primary velocity magnitude is a maximum and the secondary velocity is minimized. With greater Hall current βe values, the temperature and nanoparticle concentration are both enhanced marginally and there is an associated elevation in thermal and nanoparticle species boundary layer thicknesses in the coating regime. With negative Nr (opposing buoyancy) both temperature and nanoparticle concentration magnitudes are reduced,

Journal Article Type Article
Acceptance Date Aug 18, 2024
Deposit Date Aug 18, 2024
Print ISSN 1040-7790
Electronic ISSN 1521-0626
Publisher Taylor and Francis
Peer Reviewed Peer Reviewed
Publisher URL https://www.tandfonline.com/toc/unhb20/current