Experimental Investigation into the Forced Convective Heat Transfer of Aqueous Fe₃O₄ Nanofluids under Transition Region

Figure 4

Dependence of heat transfer coefficient of samples on Re. (a) Deionized water, (b) 0.16% (m/m) Fe₃O₄ @ PFR nanofluid, (c) 0.05% Fe₃O₄ nanofluid, and (d) 0.24% Fe₃O₄ nanofluid.