The primary purpose of this research is to investigate the analysis of a turbocharger turbine wheel with the goal of optimising its design and its use of materials. The static, computational fluid dynamics (CFD), and thermal analyses of the turbine blades that make up the turbine phase of a turbocharger are the focus of this work. The blades are responsible for extracting strength from the high-temperature and high-strain gas that was created with the assistance of the combustor. Most of the time, the turbocharger is the element that limits the turbine's potential. In order for turbine blades to thrive in this harsh environment, it is common practise to make use of uncommon materials such as special alloys and a wide variety of innovative cooling technologies. Some of these ways include inner air channels, boundary layer cooling, and thermal barrier coatings. In this project, a turbine blade is developed and modelled using the 3D modelling programme CREO, and then analysed using the software ANSYS 14.5. To improve the effectiveness of the cooling, the base of the blade has been redesigned to accommodate the new configuration. The selection of materials is of the utmost significance since the design of turbomachinery is notoriously complicated, and the efficiency of the machine is inextricably linked to the performance of its constituent parts. In this research, two distinct types of fluid flow conditions, namely laminar and turbulent flow, are taken into consideration for both the original models and the modified versions of those models. The optimisation process involves experimenting with several types of materials, such as chromium steel, titanium alloy, and nickel alloy, on the turbine blades for both designs. This is done by doing coupled field analysis (static and thermal).