Laminar mixed convection heat transfer of SiC-EG nanofluids in a triangular enclosure with a rotating inner cylinder: simulations based on the measured thermal conductivity and viscosity

作者: Yu-fei Wang , Xu Xu , Tian Tian , Li-wu Fan , Wen-long Wang

DOI: 10.1631/JZUS.A1400120

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摘要: A numerical study has been carried out for a laminar steady mixed convection flow in 2D triangular enclosure with an inner rotating coaxial cylinder, the filled ethylene glycol-silicon carbide (SiC-EG). The thermal conductivity and viscosity of SiC-EG nanofluids were experimentally determined by using Decagon Devices KD2 Pro property meter rotational Brookfield viscometer, respectively. Various pertinent parameters, such as dimensionless rotation velocity, solid volume fraction, radius Rayleigh numbers, analyzed to determine their influences on heat transfer fluid flow. Results clearly show how direction cylinder affects performance enclosure. It is found that average Nusselt number increases rise or more nanoparticles are added base liquid. was also observed at constant number, different conditions have remarkable effects characteristics.

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