Simulation of Hybrid Mesh Turbomachinery using CFD and Additive Technologies

Turbomachinery CFD on Parallel Computers

The role of multistage turbomachinery simulation in the development of propulsion system models is discussed. Particularly, the need for simulations with higher fidelity and faster turnaround time is highlighted. It is shown how such fast simulations can be used in engineering-oriented environments. The use of parallel processing to achieve the required turnaround times is discussed. Current wo...

CFD for Turbomachinery Internal Air Systems

Considerable progress in development and application of CFD for aeroengine internal flow systems has been made in recent years. CFD is regularly used in industry for assessment of air systems, and the performance of CFD for basic axisymmetric rotor/rotor and stator/rotor disc cavities with radial throughflow is largely understood and documented. Incorporation of three dimensional (3D) geometric...

Convergence Acceleration and Documentation of Cfd Codes for Turbomachinery Applications

Hybrid Parallelization of a Turbomachinery Cfd Code: Peformance Enhancements on Multicore Architectures

The CFD code TRACE used to be parallelized by means of a domain decomposition and MPI for distributed cluster architectures. The roadmap for x86 processor development however shows that the single core performance will grow only very moderately in the future. Instead one processor will integrate more and more cores. For the traditionally parallelized code this means to further increase the numb...

Multiblock Structured Mesh Generation for Turbomachinery Flows

Multiblock structured meshes offer better computational efficiency than the unstructured meshes which, on the other hand, are more flexible for complex geometries. The multiblock structured meshing could be more useful if the partitioning of the domain can be performed automatically. In this paper, we consider various automated blocking approaches for some turbomachinery zones. We then assess t...