LSTM is Granted EuroHPC Extreme Scale Access: Advancing Turbulence Research on LUMI

LSTM’s EuroHPC proposal was among the 25 evaluated under EuroHPC Call and has been awarded 470,000 node-hours on the LUMI-G supercomputer.

Using NEKO, we will perform direct numerical simulations of incompressible pipe flows and curved boundary layers at extreme scales. These efforts aim to deepen our understanding of turbulent flows, which has broad implications in fluid dynamics research. This work centers on investigating two fundamental research questions:

  • The influence of Reynolds number on rough-wall turbulence, emphasizing inner/outer region interactions
  • The effects of wall curvature and its interplay with pressure gradients.

Our research will provide a database for rough walls and help validate and improve the immersed boundary methods. Moreover, the database for curved boundary layers contributes to turbulence modeling with curvature corrections. Using state-of-the-art computational techniques and GPU-accelerated algorithms, we aim to push the boundaries of what’s possible using Computational Fluid Dynamics.