A Decoupled CHT Procedure: Application and Validation on a Gas Turbine Vane with Different Cooling Configurations

AbstractGas turbine performance improvement is strictly linked to the attainment of higher maximum temperature, hence heat load man- agement becomes an essential activity.This paper presents a decoupled procedure aimed to predict cooling performances and metal temperatures of gas turbine blades and nozzles: needed inputs are evaluated by different tools (CFD, in-house fluid network solver, thermal FEM). The procedure is validated on two different test cases: an internally cooled vane (Hylton et al.[1]), and an internally and film cooled vane (Hylton et al.[2]). Metal temperature and adiabatic effectiveness distributions are compared against experimental data and results from a fully 3D coupled CHT CFD analysis