The ambition of the HiFi-TURB project is to evolve a new generation of reliable anisotropy-resolving turbulence models, able to predict accurately separated and vortical flows for the European aeronautics industry to be used in RANS and Hybrid RANS-LES methods – forming the CFD backbone in industry. This is a major challenge and certainly requires integrated research to push the state-of-the-art forward, which is exactly the ambition of HiFi-TURB, by proposing a ground-breaking initiative, in concept and approach, through a highly collaborative effort for reaching a new stage in turbulence modelling.
With the innovative and ambitious objectives and goals of the HiFi-TURB project, using for the first time large and highly-refined LES/DNS data bases in a systematic manner, including the innovative use of AI and big-data technologies for feature detections towards new/improved turbulence models, the present gaps of capabilities in modelling challenging conditions within the flight envelop will be largely removed. It must be noticed that the turbulence models will not be improved by re-setting or introducing new parameters (e.g. by using optimization tools), but by investigating newly to be detected and well-resolved physics, avoiding any up- and downscaling of coefficients.
The collection of new reliable inter-relations of all the physical quantities that are relevant to anisotropy-resolving formulations will be saved permanently on the Open ERCOFTAC Knowledge Base, available worldwide for further investigations, beyond the duration of the HiFi-TURB project. Thus, the project will pave the way to a reliable use of RANS and wall-modelled LES approaches in a future automated industrial simulation environment.
According to the latter and driven by the work program and the technical objectives described above, industry will be supported and – to a certain extent – educated on how to run their simulations more ‘automatically’ with a minimum of user interventions – related to modelling aspects. Based on the present and even more future situation concerning HPC networks, it is the ambition of the HiFi-TURB project to forming the backbone in reaching the goals of resolving all relevant flow features in short times. Working in the direction of parallelization of codes for reaching a high level of scalability and to advance co-processing (instead of post-processing) tools to avoid huge effort and disk storage needed at the end of complete computations is the further ambition.
An overall ambition is to raise the Technology Readiness Level (TRL) from about 4-5 to 5-6, hence to demonstrate the performance of the new turbulence models on all industrial simulation environments. This goes in line by extending the range of application of the CFD tools concerning aero-acoustics, fluid-structure interaction and heat transfer. Incorporating the cutting-edge models into future design capabilities, environmental issues as well as safety aspects will be directly taken care of.
A key ambition is tied to the composition of the consortium, especially the participation of top modelling experts, each bringing into the Consortium decades of research experience and world-class achievements. With the modelling objective to develop better RSM models, the creation of an integrated group, working together in an “open-source” environment (ERCOFTAC), provides a unique chance of successfully exploiting the new models and presenting them to a broad community outside the HiFi-TURB project.
Prof. Charles Hirsch
President NUMECA International S.A
Chaussée de la Hulpe, 189, Terhulpsesteenweg
1170 Brussels, Belgium