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 trian...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 0.5×10^(4) to 2.5×10^(4),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.展开更多
基金the financial support of the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan(IRN AP14870066“Development and creation of an energy-efficient combined vertical-axial wind power plant using a gearless low-speed electric generator”).
文摘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 0.5×10^(4) to 2.5×10^(4),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.
