T12 – Collaborative Research Centre 871: Regeneration of Complex Capital Goods

T12: Simulation of complex geometries with nonconforming grids

In collaboration with MTU Aero Engines, an immersed boundary method (IBM) and a wake boundary condition were implemented in the TRACE flow solver. The wake boundary condition can be combined with synthetic turbulence (W-STG) to simulate the effects of engine-like wakes on downstream rows in turbomachinery.

Motivation

IBM enables the simulation of complex geometries such as surface roughness, five-hole probes, and more, while continuing to use Cartesian structured grids. It can even be used to simulate moving objects such as blade flutter.

Both implementations are compatible with TRACE's finite volume and discontinuous Galerkin solvers, underscoring the success of this transfer project.

Project Partners

MTU Aero Engines AG

Responsible Institutes

The project is managed by the Institute of Turbomachinery and Fluid-Dynamics .