Numerical method of conjugate heat transfer and its verification in an internally-cooled gas turbine vane

Three-dimensional conjugate heat transfer was simulated in an internally-cooled gas turbine vane using a TVD scheme with 3rd order precision and an arbitrarily curved mesh generation technique. The numerical result was validated with the experimental result and the results by the software adopting various turbulence models. It is shown that the simulations of the temperature boundary layer are not reasonable by the software using traditional turbulence models, while the simulation using transition turbulence model and adjusting the transition onset momentum thickness Reynolds number by experience is successful. The numerical result by the method of this paper is agreed well with the experimental data in the whole region except for the transition part.