Design And Experiment Study About A Type Of Magnus Horizontal Axis Wind Turbine

Fossil energy like oil is becoming less and the environment is becoming moreserious. Countries all over the world are studying new energy to replace fossilenergy. As one of new energy, many countries are paying more attention on windenergy. Now, airfoil wind turbine is used widely in the wind energy market. Thiskind of wind turbine has a high efficient, and its technology is very well-informed.On the other hand, its airfoil is complex and can’t be manufactured easily. Itscontrol system is complex, so it has a high cost of manufacture and maintenance.Traditional Magnus wind turbine has a very simple structure. The blade is just acylinder and can be easily made. Its control system is very simple. What is more, ithas a relatively high power coefficient at low wind speed. But it still has a lowercoefficient than airfoil wind turbine.This paper designs a new type of blade based on traditional blade of Magnuswind turbine. The new type of blades is made up of a cylinder and a tail. It canimprove its power coefficient with maintaining its original advantages. This paperuses CFD software Fluent, through2D simulation, compare the flow area, lift todrag ratio between the new combined blade and single cylinder blade. Analyze howcylinder rotational speed, attack angle etc. influence on the self-rotational energyloss of Magnus wind turbine. Then build3D simulation model for Magnus windturbine, and analyze how wind speed, cylinder rotational speed etc. on theperformance of Magnus wind turbine. At last, build the experiment equipment ofMagnus wind turbine. Through the experiment data, analyze how rotational speed,attack angle etc. influence on the lift to drag ratio, rotational energy loss of newMagnus wind turbine, and verify the simulation results.The new type of Magnus blade combines the advantages of traditional Magnusblade and airfoil blade. It greatly improves the lift to drag ratio of the traditionalMagnus blade, so it can improves the power coefficient of wind turbines. What ismore, the new type of Magnus blade increases the tip-speed ratio relatively to thetraditional Magnus blade, so it will spread the range of work wind speed of Magnuswind turbines. At the same time, it still has the advantages that it can be easilymanufactured and has low manufacture cost.