风电场的尾流会影响大气边界层的动量和湍流通量， 进而影响局地气候和环境。包含风电场参数化的中尺度数值模式是研究风电场对气候和环境影响的有力工具。本研究将高分辨率的大涡模拟（Large Eddy Simulation， LES）结果作为“真值”， 评估了WRF中尺度模式中的Fitch风电场参数化方案在风机区和尾流区的风速和湍流动能廓线， 提出了校正网格入流风速的方法。该方法考虑网格等效推力造成的阻塞效应， 并利用经典动量理论推导出的关系式对网格入流风速进行订正， 使其更接近自由入流风速。结果显示， 原始Fitch风电场参数化方案给出的网格入流风速和大涡模拟结果的差距明显， 且受模式水平分辨率的影响较大。在不同的水平分辨率下（1000 m、 500 m和250 m）， 校正了网格入流风速的Fitch-new风电场参数化方案给出的网格入流风速与自由入流风速的相对误差绝对值都<1%， 得到的空间平均推力和输出功率与大涡模拟结果一致。Fitch-new参数化方案改进了风电场尾流区风速亏损的模拟， 尤其是对高分辨率下风机网格的风速亏损， 模拟的风电场尾流区湍流动能的增加量和垂直分布虽然比原始Fitch方案有所改进， 但仍存在一定问题， 需进一步研究。

Wind farm wakes have a significant impact on momentum and turbulence fluxes within the atmospheric boundary layer， thereby influencing the local climate and environment.Mesoscale numerical models incorporating wind farm parameterizations are powerful tools for studying the climate and environmental impacts of wind farms.In this study， the wind speed and turbulence kinetic energy profiles of the Fitch wind farm parameterization scheme in the WRF mesoscale model are evaluated in the turbine and wake regions using high-resolution Large Eddy Simulations （LES） as “true values” and a method based on the relation derived from classical momentum theory is proposed to correct the grid-inflow wind speed.The method takes into account the blocking effect caused by the grid equivalent thrust and the corrected wind speed is closer to the free-stream wind speed.Results show that the difference between the grid-inflow wind speed from the original Fitch parameterization scheme and the LES is significant and sensitive to the model horizontal resolution.The Fitch-new parameterization with corrected grid-inflow wind speed reduces the relative error in absolute value between grid-inflow and free-stream wind speed to less than 1% across different horizontal resolutions （1000 m， 500 m， and 250 m）.The spatially averaged thrust and output power are consistent with LES results.The Fitch-new parameterization improves the simulated wind speed deficit in the wake zone of wind turbine， especially in the grid with turbine under high resolution.Although the simulated increase in turbulent kinetic energy and its vertical distribution in the wake zone is improved compared to the original Fitch scheme， there are certain issues that require further investigation.