Study of Flow in Different Elbow Draft Tubes by Using CFD

The elbow pipe is a common and essential component in terms of the transmission of fluid, be it a working fluid or a non – working fluid. The purpose of the presented work is to conceptualize an optimal design of an elbow pipe with suitable modifications, to contribute to higher rates of velocities. The base elbow pipe geometry is modified with draft tube of different shapes namely square, ellipse and circular. The modified geometries are simulated, evaluated, and compared to the base pipe geometry in terms of the velocity and pressure lineation using the SOLIDWORKS software. The results depicted ideal values for model M3 with a draft tube of ellipse shape at an inlet mass flow rate of 1.8Kg/s. The results when compared to the linear regression analysis generated, were found to be in an appreciable correlation with each other.