experimental investigation of viscosity of cu- transformer oil nanofluids

In this study, experimental results of cu-transformer oil nanofluid’s viscosity were investigated# nanofluid’s viscosity changes, as function of temperature and volume fraction have been measured# the results show that, nanofluid’s viscosity increase with increasing volume fraction and exponentially decrease with increasing temperature# some classical model were not able to predict the experimental results of viscosity’s changes but the new model that was offered by masoumi et al# considers brownian motion which has a good agreement by experimental results# nanofluid’s viscosity changes with temperature have good agreement with namburu’s experimental model#