Principal Investigator:
Romuald Skoda
, Lehrstuhl für Hydraulische Strömungsmaschinen, Ruhr-Universität Bochum
HPC Platform used:
JUWELS of JSC
Local Project ID:
chbo46, chbo48
While for the design point operation of centrifugal pumps an essentially steady flow field is present, the flow field gets increasingly unsteady towards off-design operation. Particular pump types as e.g. single-blade or positive displace pumps show a high unsteadiness even in the design point operation. Simulation results for the highly unsteady and turbulent flow in a centrifugal pump are presented. For statistical turbulence models an a-priori averaged turbulence spectrum is assumed, and limitations of these state-of-the-art models are discussed. Since the computational effort of a scale-resolving Large-Eddy-Simulation is tremendous, the potential of scale-adaptive turbulence models is highlighted.
