Investigation of the influence of the direction of the incoming flow relative to the plane of the three-cylinder rotor on the aerodynamic coefficients

Experiments have been carried out to study the influence of direction incoming flow relative rotor plane on values drag coefficient a multi-blade layout with power elements in form rotating cylinders variable cross-section. It is shown that force multipath depends Reynolds number, and practically remains constant range numbers (16-50)· 10 4 .According results series experimental data, dependences thrust number installation angle airflow were also calculated constructed. established decreases an increase number. Keywords: rotor, coefficient, WEUC (wind energy utilization coefficient).