Abstract
Large-eddy Simulation of compressible transitional flows in a low-pressure turbine cascade is performed by using 6^<th>-order compact difference and 10^<th>-order filtering method. Numerical results without free-stream turbulence and those with about 5% of free-stream turbulence are compared. In these simulations, high-accuracy Large-eddy Simulation which resolves growth of boundary layer and its fluctuation in compressible transitional turbine cascade flows is realized. Based on these results, Snapshot POD (Proper Orthogonal Decomposition) Analysis is also performed in order to investigate dominant behaviors of the unsteady boundary layers.
