OWC Systems Savonius Turbine Reduced Order Model Implementation by Means of Experimental Data

The present paper discusses the implementation of a Reduced Order Model (ROM) for an OWC Power Take-Off Savonius turbine. The turbine's ROM relies primarily on experimental data. An ad hoc laboratory-scale oscillating flow simulator was constructed to replicate the behaviour of the OWC power take-off turbine under various operating conditions. A laboratory-scale Savonius turbine with a diameter of 0.09 m, an aspect ratio of 1, and an overlap ratio of 1/3 was subjected to testing. Performance evaluations were conducted using the laboratory-scale oscillating flow simulator. In this paper, all tests were conducted at a fixed maximum air velocity of 5 m/s and different air flow oscillation frequencies. A data-driven method was employed to implement the turbine ROM, utilizing data collected during the experimental campaign. To test ROM model air flow oscillation frequency of 1.0 Hz is used.