• Haseeb Ahmed Taimoori
• Dr. P. Ravi Chander
• Dr. G. Bhaskar

Abstract- Gas turbine blades operate in extremely severe environments, often exposed to high temperatures, pressure loads, and corrosive gases. These conditions demand the use of advanced materials and protective technologies to ensure blade integrity, efficiency, and long service life. This study presents a comprehensive computational investigation into the fluid flow and thermal behaviour of gas turbine blades fabricated from high-temperature superalloys and enhanced with ceramic-based thermal barrier coatings (TBCs). Using Computational Fluid Dynamics (CFD), the research models the heat transfer and aerodynamic performance of a turbine blade subjected to realistic operating conditions. The blade geometry is designed with detailed internal cooling channels and external surfaces coated with a layer of yttria-stabilized zirconia (YSZ), which serves to insulate the underlying metallic structure from the extreme gas temperatures. The CFD simulations, conducted using SolidWorks Flow Simulation, incorporate conjugate heat transfer modelling, turbulence treatment, energy equations, and material-specific thermal properties to accurately predict the temperature distribution, velocity fields, and pressure variations across the blade surface and within its internal passages. Boundary conditions are set to replicate real engine conditions, including high inlet temperatures (up to 1600 K) and cooling air injections. The study compares results between uncoated and coated blades, highlighting the significant reduction in surface temperature due to the ceramic layer and the improvement in thermal resistance achieved by combining advanced materials and optimized cooling strategies. Results demonstrate that the integration of high-temperature titanium-based superalloys with effective ceramic coatings can significantly reduce thermal stresses, extend component lifespan, and maintain mechanical strength under high-temperature gradients. This work contributes valuable insights into the design and analysis of next-generation turbine blades and supports further innovations in materials science and thermal management for advanced gas turbine systems.

Gas turbine blade Thermal barrier coating (TBC) Yttria-stabilized zirconia (YSZ) Computational Fluid Dynamics (CFD) SolidWorks Flow Simulation Heat transfer analysis High-temperature superalloys Internal cooling channels Turbine blade cooling Thermal stress reduction Ceramic coatings Aerodynamic performance

"CFD and Thermal Analysis of Gas Turbine Blades using High-Temperature Alloys and Ceramic Coatings", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 6, page no.e216-e224, June-2025, Available :http://www.jetir.org/papers/JETIR2506420.pdf

"CFD and Thermal Analysis of Gas Turbine Blades using High-Temperature Alloys and Ceramic Coatings", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 6, page no. ppe216-e224, June-2025, Available at : http://www.jetir.org/papers/JETIR2506420.pdf