This paper introduces and explains axial turbine aerodynamic design of the developing highly-efficiency industrial gas turbine engine by Doosan heavy industries and constructions. Turbine aerodynamic design should be started with proper boundary condi...
This paper introduces and explains axial turbine aerodynamic design of the developing highly-efficiency industrial gas turbine engine by Doosan heavy industries and constructions. Turbine aerodynamic design should be started with proper boundary conditions and constraints from relevant design disciplines such as cycle, combustor, turbine heat transfer and structure. In order to meet the performance target, it is very essential to carry out 1-/2-dimensional through-flow calculations. Airfoil design phase can be performed by the boundary conditions from through-flow calculation results. After airfoil design, turbine performance should be confirmed by numerical calculations or experimental tests. In terms of numerical calculation, engineers apply combustion gas compositions, exact inlet and outlet boundary conditions to its numerical domains. In case of cooled turbine, they should consider secondary air and cooling air.