Buoyancy-driven heat transfer in nanofluid-filled trapezoidal enclosure with variable thermal conductivity and viscosity
Heat transfer performance utilizing nanofluids in a trapezoidal enclosure is investigated taking into account variable thermal conductivity and viscosity. Transport equations are modelled by a stream-vorticity formulation, and are solved numerically by the finite differ�ence method. The effects of...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis
2011
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/7976/1/J3979_d3d765b416fc9661b090336575009329.pdf http://eprints.uthm.edu.my/7976/ https://doi.org/ 10.1080/10407782.2011.616778 |
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| Institution: | Universiti Tun Hussein Onn Malaysia |
| Language: | English |
| Summary: | Heat transfer performance utilizing nanofluids in a trapezoidal enclosure is investigated
taking into account variable thermal conductivity and viscosity. Transport equations are
modelled by a stream-vorticity formulation, and are solved numerically by the finite differ�ence method. The effects of the Rayleigh number, base angle, volume fraction, and size of
nanoparticles on flow and temperature patterns as well as the heat transfer rate are pre�sented. We found that the effect of the viscosity was more dominant than the thermal con�ductivity, and there is almost no improvement in heat transfer performance utilizing
nanofluids. |
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