چکیده (انگلیسی):

Operating conditions chosen in petroleum industries depends on the characteristics of oil which is processed. Knowing about the behavior of oil fluid flow at different amounts of operating pressure and temperature is essential to manufacture the proper equipment and handling the processes. This is more important especially about the new type of oil which contains nano particle. In this study, the dimensionless groups and thermo physic parameters of the nano oil are considered to determine the nano oil behavior. Results show the average increase in the amount of density by addition of 1% of nano ferric oxide is about 1.8%. The addition of nano ferric oxide decreases the value of effective viscosity about the 27%, averagely than the simple oil. The increase in temperature shows the same decraese in the value of effective viscosity for simple oil and nano oil.