Elbow is one of the most common components in the pipe line system, where pressure difference occurred as a fluid flow. Due to the pressure difference the centrifugal forces are developed. For this reason, the behavior of the fluid flow in a 90 elbow for different geometries of nozzle have been studied using the FLUENT software. Ten different models were investigated based on the K-ɛ model of the energy equation. The analysis was simulated in...