Effects of nanoparticle clustering and alignment on thermal conductivities of Fe<inf>3</inf>O<inf>4</inf> aqueous nanofluids

Release time:2023-10-19 Hits:

Key Words:Nanostructured materials;Iron compounds - Mathematical models - Solutions - Thermal conductivity - Volume fraction;Abnormal thermal conductivities - Aqueous nanofluids - Nanoparticle alignment - Nanoparticle clustering

Abstract:Thermal conductivities of Fe<inf>3</inf>O<inf>4</inf> aqueous nanofluids were studied. The results show that Fe<inf>3</inf>O<inf>4</inf> nanofluids have higher thermal conductivities than other oxide aqueous nanofluids at the same volume fraction. The experimental values are higher than those predicted by the existing models. The abnormal thermal conductivities of Fe<inf>3</inf>O<inf>4</inf> nanofluids are attributed to the observed nanoparticle clustering and alignment. &copy; 2006 American Institute of Physics.

Volume:89

Issue:2

Translation or Not:no