Toward improved simulation tools for compressible turbomachinery: assessment of residual-based compact schemes for the transonic compressor NASA Rotor 37

Abstract

Residual-based compact schemes of second- and third-order accuracy are applied to a challenging three-dimensional flow through a transonic compressor. The proposed schemes provide almost mesh-converged solutions in good agreement with experimental data on relatively coarse grids, which allow achieving a given accuracy level with computational cost reductions by a factor between 2 and 4 with respect to standard solvers.

Keywords:

• transonic compressor
• residual-based compact scheme
• high order

Acknowledgements

This research has been done within the framework of the European project IDIHOM (Industrialisation of High Order Methods), which aims to promote the use of high-order numerical methods by the European aerospace industry.