新疆大学学报(自然科学版)
新疆大學學報(自然科學版)
신강대학학보(자연과학판)
XINJIANG UNIVERSITY JOURNAL(NATURAL SCIENCE EDITION)
2014年
4期
492-496
,共5页
史瑞静%李凤婷%樊小朝%王维庆
史瑞靜%李鳳婷%樊小朝%王維慶
사서정%리봉정%번소조%왕유경
流体力学%垂直轴风力机%气动数据库%空气动力系数%气动特性
流體力學%垂直軸風力機%氣動數據庫%空氣動力繫數%氣動特性
류체역학%수직축풍력궤%기동수거고%공기동력계수%기동특성
hydrodynamics%vertical axis wind turbine%aerodynamic databases%aerodynamic coe?cients%aerodynamic characteristics
本文结合叶素动量算法,研究了Jacobs等人建立的关于达里厄型垂直轴风力机的几种数据库,并进行了研究比对。基于美国桑迪亚国家实验室的现场可靠的实验研究,通过建立在几种数据库上的模拟仿真和实验数据比对,研究表明,叶素动量算法模拟结果可以和大多数的数据库很好的吻合,但是动态失速条件下例外,尤其是在低雷诺数时,原因是对升力系数过低的估算。研究还表明,在不同型号不同转速条件下Jacobs数据曲线更接近于实验曲线,因此,利用叶素动量算法对达里厄型垂直轴风力机进行仿真模拟研究时,应首选Jacobs数据库。
本文結閤葉素動量算法,研究瞭Jacobs等人建立的關于達裏阨型垂直軸風力機的幾種數據庫,併進行瞭研究比對。基于美國桑迪亞國傢實驗室的現場可靠的實驗研究,通過建立在幾種數據庫上的模擬倣真和實驗數據比對,研究錶明,葉素動量算法模擬結果可以和大多數的數據庫很好的吻閤,但是動態失速條件下例外,尤其是在低雷諾數時,原因是對升力繫數過低的估算。研究還錶明,在不同型號不同轉速條件下Jacobs數據麯線更接近于實驗麯線,因此,利用葉素動量算法對達裏阨型垂直軸風力機進行倣真模擬研究時,應首選Jacobs數據庫。
본문결합협소동량산법,연구료Jacobs등인건립적관우체리액형수직축풍력궤적궤충수거고,병진행료연구비대。기우미국상적아국가실험실적현장가고적실험연구,통과건립재궤충수거고상적모의방진화실험수거비대,연구표명,협소동량산법모의결과가이화대다수적수거고흔호적문합,단시동태실속조건하예외,우기시재저뢰낙수시,원인시대승력계수과저적고산。연구환표명,재불동형호불동전속조건하Jacobs수거곡선경접근우실험곡선,인차,이용협소동량산법대체리액형수직축풍력궤진행방진모의연구시,응수선Jacobs수거고。
The different aerodynamic databases of Jacobs and other researchers are studied and compared. The databases are adopted in conjunction with a Blade-Element Momentum algorithm. Experimental data deriving from Sandia National Laboratories field test available in literature for a wide range of rotor sizes are considered and compared to the simulation results. Research shows that Blade Element-Momentum Algorithm simulation results are consistent well with most of the database, but the dynamic stall exceptional conditions, especially at low Reynolds number, because of the low lift coe?cient estimates. The study also showed that different models under different conditions Jacobs speed data curve is closer to the experimental curve. Therefore the results highlight that the Jacobs database should be preferred for BE-M simulations. Overall, the main databases available in literature are considered and the results obtained compared, in order to provide the vertical axis turbine researchers with a practical indication on the methodology to apply for their studies.