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密集城市环境中基于CFD模拟的建筑风能潜力评估——从案例研究到基于树状图的设计框架

Assessment of wind energy potential of buildings by CFD simulation in dense urban environments - From Case Studies to a Dendrogram-Based Design Framework

David Serero, Lo{ï}c Couton, Jean-Denis Parisse, Robert Le Roy

arXiv 2609.15769首次发表:更新:

发表机构

EVCAU Laboratory, École Nationale Supérieure d'Architecture Paris-Val-de-Seine; GSA Laboratory, École Nationale Supérieure d'Architecture Paris-Malaquais; ISM Institut des Sciences du Mouvement Etienne-Jules Marey, UMR 7287 CNRS / Aix-Marseille Université(巴黎塞纳河谷国立高等建筑学院 EVCAU 实验室; 巴黎马拉盖国立高等建筑学院 GSA 实验室; 艾克斯 - 马赛大学 CNRS 7287 联合研究单位埃蒂安-朱尔·马雷运动科学研究所)

机构由 AI 辅助整理,请以论文原文为准。

AI 中文总结

本研究提出一种经测量验证的CFD框架,用于在密集城市建筑围护结构上定位微型风力涡轮机,通过翼型加速和树状图设计工具,实现约69兆瓦时年发电量,抵消建筑6%用电量。

AI 中文摘要

尽管建筑集成风力涡轮机(BIWT)对实现净零能源目标具有潜在贡献,但在欧洲密集的城市环境中,其部署仍然不足。本文提出了一种经过测量验证的计算流体动力学(CFD)框架,用于确定密集巴黎奥斯曼式街区建筑围护结构上微型风力涡轮机的最佳安装位置。该方法结合了在两栋案例建筑上进行的为期数月的现场风速测量活动、使用可实现k-ε湍流模型的经过校准的稳态RANS数字孪生,以及引入一种位于围护结构边缘的建筑集成加速翼——称为翼型——以放大和稳定局部气流。针对长达一年的风速计记录的定量验证得出平均绝对百分比误差(MAPE)约为18%,命中率FAC2高于0.85,满足城市CFD模型的COST 732验收标准。在巴黎-瓦尔德塞纳国立高等建筑学院(ENSAPVS)案例中,塔间配置在距地面+70米处对主导西北风向上产生3.4(95%置信区间3.18-3.62)的方向性加速因子;添加翼型后进一步产生+13%的局部加速,相当于可提取功率增加+44%。基于实测威布尔分布和萨沃纽斯转子功率曲线的容量因子分析估计年发电量约为69兆瓦时,抵消建筑年用电量的约6%——这是一个比均值立方估计低得多但更现实的数值。研究结果综合在一个决策树状图中,该树状图将风玫瑰类型、建筑平面、高度和布局映射到推荐的设备系列,为建筑师和工程师提供了可转移的设计阶段工具。

英文摘要

Building-integrated wind turbines (BIWT) remain under-deployed in dense European urban contexts despite their potential contribution to net-zero energy targets. This paper presents a measurement-validated computational fluid dynamics (CFD) framework to identify optimal locations for micro-wind turbines on the envelopes of dense Parisian Haussmannian blocks. The methodology couples a multi-month on-site anemometry campaign on two case-study buildings, a calibrated steady RANS digital twin using the realisable k-$ε$ turbulence model, and the introduction of an architecturally integrated accelerator wing -termed aerofoil -placed at the envelope edge to amplify and stabilise the local flow. Quantitative validation against year-long anemometer records yields a mean absolute percentage error (MAPE) of approximately 18 % and a hit-rate FAC2 above 0.85, meeting the COST 732 acceptance criteria for urban CFD models. On the {É}cole Nationale Sup{é}rieure d'Architecture Paris-Val-de-Seine (ENSAPVS) case study, the inter-tower configuration produces a directional speed-up factor of 3.4 (95 % CI 3.18-3.62) for the prevailing north-westerly sector at +70 m above ground; the addition of the aerofoil yields a further +13 % local speed-up, equivalent to +44 % in extractable power. A capacity-factor analysis based on the measured Weibull distribution and the Savonius rotor power curve estimates an annual yield of approximately 69 MWh, offsetting around 6 % of the building's annual electricity consumption -a substantially lower but more realistic figure than the cube-of-mean estimate. The findings are synthesised in a decision dendrogram that maps wind-rose typology, building plan, height and implantation onto recommended device families, providing architects and engineers with a transferable design-stage tool.

Journal refWind Engineering, 2026

论文原文

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