Modeling and numerical investigation of thermo mechanical behavior for impeller design of centrifugal turbine

Abstract

The main goal of the present investigation is a contribution to the design of the rotor which is among the main turbine elements that require more attention in preliminary conceptual design for safety, reliability and high performance. The modeling and simulation are carried out using a fast tool computational Abaqus software code.  It allows a verification of the thermo mechanical characteristics at the different sections of the blades during the design of a centrifugal turbine. It will then be possible to use the design of the blades, and improvement by definition and by changing their shape. The results obtained put into evidence and highlights the effects of the coupling of thermal and mechanical loading conditions which may be considered in rotor design and improving turbine performance.