CAJ | 학술논문

基于双向多流管理论模型，采用 MATLAB 软件编写程序，并将程序计算的结果与试验值进行对比，验证了双向多流管理论模型的可用性。以双向多流管理论模型为依据，研究高径比对垂直轴风力机气动性能的影响。以某一风力机为例，拟定风轮高径比和起动风速的近似关系式。研究表明，当转速相同时，随着高径比的增大，风力机风轮的起动风速减小；在中、低风速段，高径比大的风轮的输出功率大，在高风速段，高径比大的风轮的输出功率较小；在风速相同时，如要获取相同的输出功率，应增大高径比大的风力机的风轮转速。
기우쌍향다류관이론모형，채용 MATLAB 연건편사정서，병장정서계산적결과여시험치진행대비，험증료쌍향다류관이론모형적가용성。이쌍향다류관이론모형위의거，연구고경비대수직축풍력궤기동성능적영향。이모일풍력궤위례，의정풍륜고경비화기동풍속적근사관계식。연구표명，당전속상동시，수착고경비적증대，풍력궤풍륜적기동풍속감소；재중、저풍속단，고경비대적풍륜적수출공솔대，재고풍속단，고경비대적풍륜적수출공솔교소；재풍속상동시，여요획취상동적수출공솔，응증대고경비대적풍력궤적풍륜전속。
Edited the program based on double-multiple stream tube theoretical model by using Matlab software,and compared the program calculating results with the experimental values to verify the availability of double-multiple stream tube theoretical model.According to double-multiple stream tube theoretical model,studied aerodynamic performance of vertical axis wind turbine on the height-diameter ratio,the results showed that with the increase of the height-diameter rati-o,the start-up wind speed of wind turbine wheel was reduced when the rotate speed was at the same.And taking a wind turbine for example,fit curve described wind wheel height-diameter ratio and the start-up wind speed approximate relation-ship.In the medium and low wind speed segment,the large height-diameter ratio wind wheel corresponding to the large out-put power,but in the high wind speed segment,and the large height-diameter ratio wind wheel corresponding to the small output power.When the wind speed was at the same,the rotate speed of the large height-diameter ratio wind wheel must be increased in order to gain the same output power.