Hydropower is a clean and renewable source of energy which is widely used to generate
electric power and stabilize the power grid. It can respond quickly to any change in demand …

Reversible pump-turbines need to operate often at off-design operating conditions to
stabilize the electric grid. These operating conditions cause hydraulic instabilities due to the …

Solid-liquid mixing is often applied in the chemical industry to keep solids in suspension for,
amongst others, crystallization, adsorption, heterogeneous catalysis, etc. The most widely …

This study investigated the performance of proper orthogonal decomposition (POD), discrete
Fourier transformation (DFT), time-domain spectral proper orthogonal decomposition (td …

This paper studies the coherent structures found in an annular swirling jet flow undergoing
vortex breakdown with control parameters, the Reynolds number Re= 8500 and the swirl …

In this study, we experimentally investigate large-scale vortex structures, fuel-air mixing and
reaction processes, which occur in a partially premixed swirl-stabilized ethylene/air flame in …

We report on the experimental study of a precessing vortex core (PVC) in an air model of a
Francis turbine. The focus is placed on the modal decomposition of the PVC that occurs in …

This paper presents bifurcation analyses characterising the nonlinear dynamics of fully
developed laminar annular jets with respect to the centrebody diameter is increased …

Motivated by the recent success in finding coherent structures in turbulent flows and
describing their noise emission using the Resolvent Analysis (RA), the method is applied to …

This paper presents a comprehensive study of the unsteady flow field in a new concept lean
direct injection gas turbine burner, which aims at a clean and efficient combustion with …