Scale Resolving Fluid Simulations

3D view of a linear, transonic compressor cascade
Illustration of the flow field through resolved turbulent scales and the shock-boundary-layer-system resulting from a Large-Eddy Simulation (LES).

The branch on "Scale-resolving CFD" develops state-of-the-art simulation methods and qualifies these in the DLR flow solver TRACE for industrial use in turbomachinery design. We work closely with the TRACE development team at the DLR Institute of Propulsion Technology.

While stationary simulation methods are widely used in industry, scale-resolving methods are an important step towards the numerical test bench. The high mapping accuracy of scale-resolving methods in combination with HPC clusters enables better prediction of critical flow conditions (such as laminar-turbulent transition, massive separation or shock-boundary layer interaction) and thus represents a strong complement to experimental measurement campaigns.

In addition to the development and improvement of numerical methods, we are involved in the physical evaluation of turbomachinery components. The comparison with experimental data is an important part of this, which is why we maintain close co-operation with the experimental and application-related departments of the institute, as well as with external partners.


Prof. Dr.-Ing. Stefan Reh

Deputy Director & Head of Department
German Aerospace Center (DLR)
Institute of Test and Simulation for Gas Turbines