Effect of Magnetic Field on Entropy Generation in a Microchannel Heat Sink with Offset Fan Shaped
AbstractIn this study, convection flow in microchannel heat sink with offset fan-shaped reentrant cavities in sidewall filled with Fe3O4-water is numerically investigated. The effects of changing some parameters such as Reynolds number and magnetic field are considered. The nanofluid flow is laminar, steady and incompressible, while the thermo-physical properties of nanoparticles were assumed constant. A finite volume method and two phase mixture models were used to simulate the flow. The obtained results show that the frictional entropy generation increases as Reynolds number increases, while a reverse trend is observed for thermal entropy generation. By applying a non-uniform magnetic field, the entropy generation due to heat transfer decreases at first and then increases. When using the uniform magnetic field, the frictional entropy generation and thermal entropy generation is negligible. For all studied cases, the total entropy generation decreases using non-uniform magnetic fields. The results indicate that by increasing the magnetic field power, the total entropy generation decreases. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Nasiri, M.; Rashidi, M.M.; Lorenzini, G. Effect of Magnetic Field on Entropy Generation in a Microchannel Heat Sink with Offset Fan Shaped. Entropy 2016, 18, 10.
Nasiri M, Rashidi MM, Lorenzini G. Effect of Magnetic Field on Entropy Generation in a Microchannel Heat Sink with Offset Fan Shaped. Entropy. 2016; 18(1):10.Chicago/Turabian Style
Nasiri, Mohammad; Rashidi, Mohammad M.; Lorenzini, Giulio. 2016. "Effect of Magnetic Field on Entropy Generation in a Microchannel Heat Sink with Offset Fan Shaped." Entropy 18, no. 1: 10.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.