Journal
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume 138, Issue 2, Pages 1127-1136Publisher
SPRINGER
DOI: 10.1007/s10973-019-08304-7
Keywords
Hybrid nanofluid; Convective-radiative heat transfer; Flow characteristics; Stretching cylinder; Nanoparticles; Magnetohydrodynamics
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In the current study, heat transfer performances and flow characteristics of alumina-copper/water (Al2O3-Cu/H2O) hybrid nanofluid over a stretching cylinder are explored under the influence of Lorentz magnetic forces and thermal radiation. The Roseland's flux model is employed for the impact of thermal radiations. The governing flow problem comprises of nonlinear ordinary differential equations, which are transformed into nondimensional form via suitable similarity transforms, Boussinesq and boundary layer approximations. Results of heat and fluid flow as well as convective heat transfer coefficient and skin friction coefficient under influence of embedding parameters are displayed and discussed through tables and graphs. To check its heat transfer performance, a comparison of hybrid nanofluid with base fluid and single material nanofluids is also made and found that hybrid nanofluids are more effective in heat transfer than conventional fluids or single nanoparticles-based nanofluids.
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