AeroDyn Theory Manual
AeroDyn Theory Manual
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DOI：
10.2172/15014831
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
P. Moriarty;A. Hansen
中科院分区：
文献类型：
--
作者：
P. Moriarty;A. Hansen
AeroDyn是一套与气动弹性模拟代码结合使用的例程，用于预测水平轴风力涡轮机的空气动力学。这些子程序提供了几种不同的模型，其理论基础在本手册中有描述。AeroDyn包含两个计算风力涡轮机尾流效应的模型：叶素动量理论和广义动态尾流理论。叶素动量理论是许多风力涡轮机设计者使用的经典标准，广义动态尾流理论是用于对偏斜和非定常尾流动态进行建模的较新模型。当使用叶素动量理论时，用户可以得到各种修正，例如，将叶尖损失、轮毂损失和斜尾流的空气动力效应结合起来。在广义动态尾流中，所有这些效应都被自动包含在内。这两种方法都用于计算转子平面内尾流的轴向诱导速度。用户还可以选择计算旋转诱导速度。此外，AeroDyn包含一个基于半经验Beddoes-Leishman模型的动态失速重要模型。该模型对于偏航风力涡轮机尤其重要。AeroDyn中的另一个空气动力学模型是基于圆柱体周围的势流和扩展尾流的塔影模型。最后，AeroDyn能够读取几种不同格式的风输入，包括单点轮毂高度风文件或多点湍流风。«少
AeroDyn is a set of routines used in conjunction with an aeroelastic simulation code to predict the aerodynamics of horizontal axis wind turbines. These subroutines provide several different models whose theoretical bases are described in this manual. AeroDyn contains two models for calculating the effect of wind turbine wakes: the blade element momentum theory and the generalized dynamic-wake theory. Blade element momentum theory is the classical standard used by many wind turbine designers and generalized dynamic wake theory is a more recent model useful for modeling skewed and unsteady wake dynamics. When using the blade element momentum theory, various corrections are available for the user, such as incorporating the aerodynamic effects of tip losses, hub losses, and skewed wakes. With the generalized dynamic wake, all of these effects are automatically included. Both of these methods are used to calculate the axial induced velocities from the wake in the rotor plane. The user also has the option of calculating the rotational induced velocity. In addition, AeroDyn contains an important model for dynamic stall based on the semi-empirical Beddoes-Leishman model. This model is particularly important for yawed wind turbines. Another aerodynamic model in AeroDyn is a tower shadow model based on potentialmore » flow around a cylinder and an expanding wake. Finally, AeroDyn has the ability to read several different formats of wind input, including single-point hub-height wind files or multiple-point turbulent winds.« less