Search academic texts

Information × Registration Number 0208U004782, 0107U005999 , R & D reports Title Investigation of processes of dynamics and aerodynamics of vertical-axis wind turbines rotors popup.stage_title Head Redchyts Dmytro, Registration Date 17-12-2008 Organization Institute of Transport Systems and Technologies of National Academy of Sciences of Ukraine popup.description2 Subject of research is motion of incompressible liquid around of vertical-axial wind turbine rotors. The purpose of the given activity is theoretical research of structure and definition of basic parameters of unsteady flow of vertical-axial wind turbines Darrieus and Savonius rotors on the basis of a numerical solution of dynamical equations of viscous incompressible liquid and a rigid body, development of mathematical models which take into account the main defining physical processes; development of procedures, algorithms and programs for mathematical simulation of unsteady turbulent incompressible flows around of vertical-axial wind turbine rotors. The report gives a new solution for an actual research problem of unsteady vertical-axis wind turbines rotors aerodynamics on the base of Navier-Stokes equations. General definition of the coupled problem on vertical-axis wind turbines rotors aerodynamics and dynamics is formulated. A code for the calculation of vertical-axis wind turbines rotors aerodynamic and power characteristics is developed on the base of Reynolds averaged Navier-Stokes equations for incompressible fluids. Analysis of development of unsteady turbulent incompressible flows is fulfilled for the flow around Darrieus and Savonius rotors. Two types of Darrieus and Savonius rotors differing in number of blades and their geometrical parameters are computed. Effect of Reynolds number, solidity and tip-speed-ratios on rotor power characteristics is established. Product Description popup.authors popup.nrat_date 2020-04-02 Close