Performance characteristics of a contra-rotating pump-turbine in turbine and pump modes under cavitating flow conditions - Fahlbeck, Jonathan; Nilsson, Håkan; Arabnejad Khanouki, Mohammad Hossein; Salehi, Saeed (Augmenting grid stability through Low-head Pumped Hydro Energy Utilization & Storage (ALPHEUS) Renewable Energy, 2024)