Power Coefficient Analysis of Double-blade Half-rotating Impeller Tidal Turbine Operating at YawCong Liu, Xiaoyi Wang, Xiaofeng Yu, Yuhua Zhang, Zhizhen Qiu and Xiangrong XuE3S Web Conf., 242 (2021) 03008DOI: https://doi.org/10.1051/e3sconf/202124203008