Thermal dispersion model has been used here to simulate heat transfer of water–Al2O3
nanofluid. A new form for dispersion thermal conductivity has been introduced in which
non-uniform concentration distribution is applied on the model. It was observed that the
non-uniformity of concentration increases at greater Reynolds numbers and average
concentrations. An experimental set-up was made, and an experimental study was conducted
to find the empirical coefficient in the dispersion thermal conductivity. The obtained results
show that the developed dispersion model is able to properly simulate heat transfer of the
nanofluid and provides more accurate results in comparison with a homogenous model.
کلید واژگان :
nanofluid, heat transfer, experimental, dispersion model, particle distribution
