Colloquium: Liam Bills (FPP)

13 juli 2020 09:30 - Locatie: Lecture Room D, Faculty of Aerospace Engineering, Kluyverweg 1, Delft

Validation of the SU2 Flow Solver for Classical Non Ideal Compressible Fluid Dynamics

The validation of SU2 for modeling classical NICFD will advance the research into efficient ORC turbomachinery design. This study determines the validity of the flow solver for predicting the expansion of Siloxane MM through a converging-diverging nozzle using compressible Euler equations, adiabatic flow, and the Peng-Robinson equation of state. Mach number along the centerline and static pressure along the nozzle surface were the system response quantities used in the analysis. Experimental data came from the ORCHID, model uncertainty was quantified using stochastic collocation, and the numerical uncertainty was calculated using the Richardson extrapolation. The conclusions were based on the ASME V&V 20 and Real Space validation metrics, with a novel Engineering Response Quantity analysis to determine the effects of system uncertainty on performance parameters. The studied SU2 model provided valid predictions for Mach number, and invalid predictions for static pressure. The developed infrastructure can be used for expanding the validation to different flow cases.