Analysis of velocity and pressure vector distribution fields in a three-dimensional plane around a wind power plant

Abstract

To date, there has been an increase in demand for electric energy obtained from clean renewable energy sources. One of them is wind power. Based on this, the development and research of new types of efficient wind turbines that start working at low wind speeds is an urgent issue. Wind turbines operating based on the Magnus effect have proven their effectiveness. However, the authors of this work, for the first time, to eliminate the problem in the form of an electric drive for the promotion of cylindrical blades added a deflector element to the end of the cylinders. Before creating an experimental setup, it is necessary to numerically investigate the aerodynamics around the wind wheel. For this purpose, numerical simulation of wind wheel aerodynamics has been carried out using the highly efficient Ansys Fluent program. A three-dimensional geometry has been created in Design Modeler. A mathematical model grid with a grid number of 47329 consisting of tetragonal cells is constructed. The Realizable k-ε is chosen as the turbulence model. A thorough analysis of the velocity vector distribution fields for flow and pressure velocities in the three-dimensional plane around the wind wheel at air flow velocities of 5.10 and 15 m/s is carried out.

Determination of the aerodynamic characteristics of a wind power plant with a vertical axis of rotation

“…Although there are many works concerning wind turbines with round cylinders [16][17][18][19], few works describe the configuration and aerodynamic characteristics of wind turbines with a vertical axis of rotation with blades in the form of round cylinders to improve energy characteristics.…”

“…A group of authors of the work [18] performed numerical modeling and calculation of the moment of forces around a spinning wind wheel, but the nature of the effect of the flow on the aerodynamics around the wind wheel is also not given. The authors of the work [19] also performed mathematical modeling, but nevertheless, experimental results are the basis for creating prototypes of wind turbines.…”