A numerical study of the influence of solidity on the performance of vertical axis turbine Teresa Parra-Santos, Diego J. Palomar-Trullen, Mario Fernandez-Gomez, Armando Gallegos-Muñoz, Cristobal N. Uzarraga and Francisco Castro-Ruiz EPJ Web Conf., 143 (2017) 02089 Published online: 12 May 2017 DOI: 10.1051/epjconf/201714302089