Heat Transfer Analysis of the Turbine Blades by using Finite Element Method

The research presents a finite element algorithm divided into three distinct phases for analyzing the stress state of a turbine blade. The first phase involves generating a thermal model for stationary thermal analysis, which does not consider the effects of pressure loading. This phase calculates the stresses and strains induced by thermal effects, excluding the influence of pressure distribution. The second phase establishes the pressure load and assesses the stress distributions and deformations resulting from the pressure effects of the combustion gas, again without considering thermal influences. The final phase evaluates the combined stress and strain distributions caused by both thermal and pressure effects. The turbine blade is represented using finite elements modeled as solid elements of revolution, with three nodes and two degrees of freedom corresponding to each node. The blade itself is constructed from a nickel-based alloy.