Numerical Simulation and Experiment Investigation of the Wind Turbine Airfoil with High Power
|School||Shenyang Institute of Aeronautical College|
|Course||Aerospace Propulsion Theory and Engineering|
|Keywords||Airfoil Wind turbine Aerodynamic characteristics Jet|
This paper systematically introduces the basic problem of the geometric parameters of the basic theory of the wind turbine airfoil wind wheel , aerodynamic characteristics , and also introduced the numerical simulation of wind turbine blades basis and methods of mathematical physics . Through the analysis of wind turbine works , the first big bend and blunt trailing edge of the airfoil modification . Second tip and trailing edge jet A new technology to improve the efficiency of the wind turbine , its guiding philosophy is to rotate the centrifugal force generated by the use of wind wheel , the the wind wheel hub near the gas channel leads through the hollow blades , respectively. ejected from the tip and the trailing edge in the opposite direction to the direction of rotation . The first discusses the impact of a the airfoil big bend and blunt trailing edge modification of the airfoil aerodynamic characteristics . First create a variety of retrofit model , then using CFD software for numerical analysis, airfoil in different wind speeds , different angle of attack case , the lift coefficient , drag coefficient . The results show that , before the stall angle of attack , the modification significantly improved the aerodynamic performance of the airfoil , modified jet greater the angle , the more obvious effects . Second Wind tunnel tests of of an airfoil passive jet modification . Its the suction front of the end of the edge and pressure surface edge tip , roots openings , respectively , and in the wind tunnel , the study of comparative experiments . The test results show that : the jet of the trailing edge and the leading edge of the root of jet significantly improve the performance of a wind turbine .