VAWT Stochastic Wind Simulator

VAWT Stochastic Wind Simulator
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VAWT 随机风模拟器

DOI:
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发表时间:
2004
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通讯作者:
J. Strickland
J. Strickland
中科院分区:
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文献类型:
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作者:
J. Strickland

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本文提出了一种随机风模拟方法,该方法可以得到旋转采样点的湍流风速波动。这允许在风力涡轮机转子上的指定节点处模拟三分量风速波动。采用了一阶对流方案,该方案考虑了气流通过风机转子时沿流速度的减小。VSTOC模拟独立于用于预测涡轮气动特性和性能特性的特定分析技术。VSTOC子程序可以简单地用作特定VAWT预测代码中的子程序,也可以用作独立处理器中的子程序。使用独立处理器与VAWT预测代码进行交互,该代码被分割为确定性和随机模块。在减少整个计算过程的计算机时间方面,以这种方式使用VSTOC非常有效。(本页故意留空)
A stochastic wind simulation for VAWTs (VSTOC) has been developed which yields turbulent wind-velocity fluctuations for rotationally sampled points. This allows threecomponent wind-velocity fluctuations to be simulated at specified nodal points on the wind-turbine rotor. A first-order convection scheme is used which accounts for the decrease in streamwise velocity as the flow passes through the wind-turbine rotor. The VSTOC simulation is independent of the particular analytical technique used to predict the aerodynamic and performance characteristics of the turbine. The VSTOC subroutine may be used simply as a subroutine in a particular VAWT prediction code or it may be used as a subroutine in an independent processor. The independent processor is used to interact with a version of the VAWT prediction code which is segmented into deterministic and stochastic modules. Using VSTOC in this fashion is very efficient with regard to decreasing computer time for the overall calculation process. (this page intentionally left blank)