The authors of the work numerically studied the aerodynamic coefficients of the sail blade, during which the patterns of three-dimensional flow around airflow and the pressure distribution field were obtained. The triangular sail blade is used as the power element of wind turbines. The sail blade modeling was based on the Reynolds-averaged Navier–Stokes equations (RANS) using the ANSYS FLUENT computer program. A flow pattern is obtained, which gives a physical explanation of the nature of the airflow around the sail blade and the pressure distribution field. Comparative analyses of theory and experiment are given. In the range of Reynolds numbers from 0.5 × 104 to 2.5 × 104, the change in the drag force coefficient is from 1.04 to 0.54, and the difference in the lift force coefficient is from 0.52 to 0.33.

中文翻译：

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风帆叶片气动系数的数学建模

该工作的作者对风帆叶片的气动系数进行了数值研究，在此期间获得了气流周围的三维流动模式和压力分布场。三角帆叶片用作风力涡轮机的动力元件。风帆叶片建模基于使用 ANSYS FLUENT 计算机程序的雷诺平均纳维-斯托克斯方程 (RANS)。获得了流动模式，它给出了风帆叶片周围气流的性质和压力分布场的物理解释。给出了理论和实验的对比分析。在雷诺数从0.5×104到2.5×104的范围内，阻力系数的变化从1.04到0.54，升力系数的差值从0.52到0.33。