{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T12:33:32Z","timestamp":1768566812861,"version":"3.49.0"},"reference-count":58,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2022,1,7]],"date-time":"2022-01-07T00:00:00Z","timestamp":1641513600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JMSE"],"abstract":"<jats:p>The present work aims to develop a computational model investigating turbulent flows in a problem that simulates an oscillating water column device (OWC) considering a Savonius turbine in the air duct region. Incompressible, two-dimensional, unsteady, and turbulent flows were considered for three different configurations: (1) free turbine inserted in a long and large channel for verification\/validation of the model, (2) an enclosure domain that mimics an OWC device with a constant velocity at its inlet, and (3) the same domain as that in Case 2 with sinusoidal velocity imposed at the inlet. A dynamic rotational mesh in the turbine region was imposed. Time-averaged equations of the conservation of mass and balance of momentum with the k\u2013\u03c9 Shear Stress Transport (SST) model for turbulence closure were solved with the finite volume method. The developed model led to promising results, predicting similar time\u2013spatial-averaged power coefficients (CP\u00af) as those obtained in the literature for different magnitudes of the tip speed ratio (0.75 \u2264 \u03bb \u2264 2.00). The simulation of the enclosure domain increased CP\u00af for all studied values of \u03bb in comparison with a free turbine (Case 1). The imposition of sinusoidal velocity (Case 3) led to a similar performance as that obtained for constant velocity (Case 2).<\/jats:p>","DOI":"10.3390\/jmse10010079","type":"journal-article","created":{"date-parts":[[2022,1,9]],"date-time":"2022-01-09T23:06:15Z","timestamp":1641769575000},"page":"79","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Development of a Computational Model for Investigation of and Oscillating Water Column Device with a Savonius Turbine"],"prefix":"10.3390","volume":"10","author":[{"given":"Amanda Lopes","family":"dos Santos","sequence":"first","affiliation":[{"name":"Ocean Engineering, School of Engineering, Federal University of Rio Grande (FURG), Italia Av., km 8, Rio Grande 96203-900, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0046-8810","authenticated-orcid":false,"given":"Cristiano","family":"Fragassa","sequence":"additional","affiliation":[{"name":"Department of Industrial Engineering, University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy"}]},{"given":"Andrei Lu\u00eds Garcia","family":"Santos","sequence":"additional","affiliation":[{"name":"Computational Modeling, School of Engineering, Federal University of Rio Grande (FURG), Italia Av., km 8, Rio Grande 96203-900, Brazil"}]},{"given":"Rodrigo Spotorno","family":"Vieira","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Federal University of Rio Grande do Sul (UFRGS), Sarmento Leite St., 425, Porto Alegre 90040-001, Brazil"}]},{"given":"Luiz Alberto Oliveira","family":"Rocha","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Federal University of Rio Grande do Sul (UFRGS), Sarmento Leite St., 425, Porto Alegre 90040-001, Brazil"}]},{"given":"Jos\u00e9 Manuel Paix\u00e3o","family":"Conde","sequence":"additional","affiliation":[{"name":"UDEMI, NOVA School of Science and Technology, Campus de Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9337-3169","authenticated-orcid":false,"given":"Li\u00e9rcio Andr\u00e9","family":"Isoldi","sequence":"additional","affiliation":[{"name":"Ocean Engineering, School of Engineering, Federal University of Rio Grande (FURG), Italia Av., km 8, Rio Grande 96203-900, Brazil"},{"name":"Department of Industrial Engineering, University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4566-2350","authenticated-orcid":false,"given":"Elizaldo Domingues","family":"dos Santos","sequence":"additional","affiliation":[{"name":"Ocean Engineering, School of Engineering, Federal University of Rio Grande (FURG), Italia Av., km 8, Rio Grande 96203-900, Brazil"},{"name":"Department of Industrial Engineering, University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy"}]}],"member":"1968","published-online":{"date-parts":[[2022,1,7]]},"reference":[{"key":"ref_1","unstructured":"International Energy Agency (IEA) (2019). 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