March 6 - 8, 2017 | Berlin
LEADING ENGINEERING SIMULATION CONFERENCE
High fidelity CHT CFD for gas turbine heat transfer
In an increasingly competitive marketplace for gas turbines, highly efficient and validated computational tools are of paramount importance for reducing the time to market of gas turbine components. Historically, heat transfer has been an area where turbine design has predominantly used one-dimensional correlations, which are based on expensive and very time-consuming rig experiments. With today’s available computing power, Conjugate Heat Transfer (CHT) Computational Fluid Dynamics (CFD) simulations allow the characterization of complete sections of gas turbine components, greatly speeding up the design cycle time and reducing the Research and Development (R&D) effort. In this computational paradigm, the quality of the design has to rely on an extensive validation of the CFD tool that becomes an essential part of the design effort. This paper presents a unique CHT CFD process based on Siemens PLM software and the validation of classical cooling flows (turbulators, impingement and pin fins) and full components tested in engines. We show the effect of mesh discretization and turbulence models in producing good engineering results.