Dataset for the AMR-Wind digital-twin simulations of the three-turbine experimental facility

This dataset contains the numerical setup and sampled outputs of a digital twin of a three-turbine wind-tunnel facility implemented in AMR-Wind v3.8.0, an open-source, performance-portable flow solver based on AMReX. AMR-Wind is designed for high-fidelity wind farm and atmospheric boundary-layer simulations, including LES, actuator-based turbine models, and adaptive mesh refinement. The simulations solve the incompressible Navier–Stokes equations with Boussinesq buoyancy, Coriolis forcing, and actuator forcing. The computational domain spansx ∈ [-10.0, 14.2] m, y ∈ [-6.92, 6.92] m, and z ∈ [0.0, 3.84] m.A base mesh of 304 × 176 × 48 cells is used, with up to three AMR levels, yielding a local mesh spacing of approximately 0.01 m at the turbine rotor disk. Boundary conditions are prescribed as follows: no-slip walls on y_lo, y_hi, z_lo, z_hi, mass inflow at x_lo, and pressure outflow at x_hi. Realistic inflow is imposed through time-resolved velocity fields ingested from a precursor large-eddy simulation (see https://zenodo.org/records/18860646 and https://zenodo.org/records/19004026) using the AMR-Wind boundary-plane inflow capability. A minimal source-code modification was introduced to allow scaling of the ingested velocity fields by a constant factor in order to match the experimental wind conditions. The flow is advanced with a fixed time step of Δt = 2.5 × 10^-4 s, target CFL = 0.95, and total simulated time of 30 s. Subgrid-scale closure is provided by the AMD model, and the atmospheric boundary-layer setup uses a surface roughness length of z0 = 10^-3 m. The three-turbine cluster is modeled with the Actuator Line Model (ALM) corrected by the vortex-based tip/smearing correction of Meyer Forsting (A vortex-based tip/smearing correction for the actuator line, Meyer Forsting et al. , 2019, https://doi.org/10.5194/wes-4-369-2019) coupled to OpenFAST, in order to represent the aero-servo-elastic response of the G1 turbines. Each rotor is discretized with 60 actuator points per blade and 12 points along the tower. The Gaussian smearing width is ε = 0.013 m. This repository contains the numerical setup, auxiliary scripts, and representative outputs of AMR-Wind simulations reproducing selected cases of the experimental dataset Multiple wakes measurement with lidar (https://zenodo.org/records/18731994) To support validation against experiments, planar sampling is performed during runtime on: one x–y plane located slightly above hub height, multiple y–z planes spanning the test-section height. Velocity fields are sampled every 200 time steps. This repository is intended to support reproducibility and reuse of the AMR-Wind numerical setup associated with the corresponding publication. It includes the simulation input files, documentation of the computational setup, information on the software environment, and sampled outputs required to reproduce the reported analyses.本数据集包含基于AMR-Wind v3.8.0实现的三涡轮风洞设施数字孪生的数值设置与采样输出结果。AMR-Wind是一款基于AMReX开发的开源、性能可移植的流动求解器，可用于开展高精度风电场与大气边界层模拟，涵盖大涡模拟（LES）、基于致动器的涡轮模型以及自适应网格细化（AMR）技术。 该模拟求解了考虑布辛涅斯克浮力、科里奥利力与致动器强迫的不可压缩纳维-斯托克斯方程。计算域范围为x ∈ [-10.0, 14.2] m、y ∈ [-6.92, 6.92] m、z ∈ [0.0, 3.84] m。采用304 × 176 × 48个单元格的基础网格，最多支持3层自适应网格细化，在涡轮转子盘处可实现约0.01 m的局部网格间距。 边界条件设置如下：y_lo、y_hi、z_lo、z_hi处为无滑移壁面，x_lo处为质量流入边界，x_hi处为压力流出边界。通过AMR-Wind的边界平面入流功能，从前驱大涡模拟（详见https://zenodo.org/records/18860646与https://zenodo.org/records/19004026）中提取时间分辨速度场，以施加真实入流条件。为匹配实验风况，我们对源代码进行了最小修改，允许通过恒定系数对提取的速度场进行缩放。 模拟采用固定时间步长Δt = 2.5 × 10^-4 s推进，目标库朗数（CFL）为0.95，总模拟时长为30 s。亚网格尺度闭合采用AMD模型，大气边界层设置的表面粗糙度长度z0 = 10^-3 m。 三涡轮集群采用经Meyer Forsting基于涡旋的叶尖/弥散修正（论文标题：A vortex-based tip/smearing correction for the actuator line，Meyer Forsting等，2019，https://doi.org/10.5194/wes-4-369-2019）校正的致动线模型（ALM）进行建模，并耦合OpenFAST以表征G1涡轮的气动-伺服-弹性响应。每个转子的每片桨叶离散为60个致动点，塔架沿轴向离散为12个点。高斯弥散宽度ε = 0.013 m。 本代码仓库包含复现实验数据集《Multiple wakes measurement with lidar》（https://zenodo.org/records/18731994）中选定工况的AMR-Wind模拟数值设置、辅助脚本与代表性输出结果。 为支持与实验结果的验证，模拟运行期间会在以下位置进行平面采样： - 一个略高于轮毂高度的x-y平面； - 多个覆盖试验段高度的y-z平面。 速度场每200个时间步采样一次。 本仓库旨在支持对应发表论文中AMR-Wind数值设置的可复现性与复用性，包含模拟输入文件、计算设置文档、软件环境信息以及复现报告中分析所需的采样输出结果。