Sharif Digital Repository

Viscosity is one of the most important properties used in simulating and optimizing transportation design and hydrocarbon reservoirs simulation. In this work, a new model based on the friction theory was used to correlate the viscosity for six different live and dead oil samples taken from the south of the Iranian oil region. As expounded by other researchers, in the friction theory, an equation of state is used to express the intermolecular viscous interactions. In model presented in this work, the standard cubic equations of state such as the SRK and PR were used to correlate the viscosity data for the samples under investigation. In the new model, the effect of critical viscosity on the... 

A comprehensive analysis of the interactions between neutronic and thermal-hydraulics phenomena is crucial to avoid unnecessary costs in nuclear power plants resulting from the implementation of overly conservative approaches in design and operation. A recommended strategy involves transitioning from one-dimensional neutronics calculations, which are based on point kinetic equations, to three-dimensional calculations through the integration of neutronic-thermal-hydraulics simulations. While thermal-hydraulic and safety analyses are commonly performed using system codes like RELAP5, their reliance on one-dimensional calculations limits their ability to model complex phenomena such as mixing...