Pulsed flow turbine design recommendations

Florian Hermet (1) , Nicolas Binder (1) , Jérémie Gressier (1)

1 DAEP - Département Aérodynamique Energétique et Propulsion

A preliminary analysis of turbine design, fit for pulsed flow is proposed in this paper. It focuses on an academic 2D configuration using inviscid flows, since pressure loads due to wave propagation are several order of magnitude higher than friction and viscous effects do not significantly impinge on the inviscid part. As such, a large parametric study is carried out using the design of experiments methodology. A performance indicator adapted to unsteady environment is carefully defined before detailing the factors chosen for the design of experiments. Since the number of factors is substantial, a screening design to identify the factors influence on the output is first established. The non-influential factors were then omitted in a more quantitative study of the output law. The surface response calculation allows to determine the factors level favouring the best output. Consequently, the main trends in the turbine design driven by a pulsed flow can be stated.

Mots clés: Pulsed flow; Turbine design; Design of experiment

Domaines: Mécanique des fluides [physics.class-ph]

Florian Hermet, Nicolas Binder, Jérémie Gressier. Pulsed flow turbine design recommendations. 14th European Conference on Turbomachinery Fluid dynamics & Thermodynamics (ETC14), Apr 2021, Gdansk, Poland. pp.0. ⟨hal-03209283⟩