Thermal Science and Engineering Progress, cilt.62, 2025 (SCI-Expanded, Scopus)
This study investigates the Fluid-Structure Interaction (FSI) analyses of a power turbine blade designed for operation in modern gas turbine engines. The research employs various approaches to FSI analyses to evaluate the blade's deformation, temperature, and thermal stress distribution. Temperature distributions on the blade were calculated using one-way FSI analysis. Based on these temperature values, both one-way and two-way FSI analyses were conducted for the blades and vanes. Pressure and deformation values obtained from one-way and two-way FSI analyses were compared. The results showed that two-way FSI analyses significantly increased solution times, with only a 0.7% difference in deformation values compared to one-way FSI analyses. In addition, one-way FSI analyses were performed for nine different cases in which the blade was positioned in various angular orientations relative to the vane to examine the effect of the position of the blade relative to the vane on the deformation and temperature distribution. The findings suggest that the deformation and temperature distribution occurring on the blade also vary with the position of the blade. It has been determined that one-way FSI analyses, which consider the blade's position, can be a cost-effective approach, offering valuable insights before experimental studies in the design of gas turbine engine blades. These analyses are expected to guide the reduction of solution costs in future blade designs.