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<p>Wind energy, as an important sustainable renewable resource, offers significant potential for addressing the energy challenges associated with rapid urbanisation and the excessive reliance on fossil fuels. Consequently, the integration of wind power generation systems into high-rise buildings has attracted increasing attention in recent years. This study presents a case investigation of two adjacent elliptical vertical farm buildings with a cross-sectional axis ratio of 4:3, equipped with horizontal-axis wind turbines. Wind tunnel tests (WTTs) and computational fluid dynamics (CFD) simulations were conducted to examine the influence of the spacing-to-height ratio (D/H) on wind energy harvesting performance. The results indicate that the power generation capacity varies significantly when the D/H ratio ranges from 0.15 to 0.45, reaching a maximum at D/H = 0.20. Beyond this value, particularly when D/H exceeds 0.25, the enhancement effect diminishes, and the power generation potential gradually decreases. Furthermore, the proposed elliptical building configuration demonstrates superior performance under low wind speed conditions, achieving an increase in power generation of up to 347% compared with the reference case. These findings provide valuable insights into the aerodynamic design and optimisation of building-integrated wind energy systems in urban environments.</p>

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On the impact of the interval between buildings with urban vertical farms in elliptical plan layouts to wind energy harvesting: a case study

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月21日

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  • Simeng Xie,
  • Pedro Martinez-Vazquez,
  • Charalampos Baniotopoulos

摘要

Wind energy, as an important sustainable renewable resource, offers significant potential for addressing the energy challenges associated with rapid urbanisation and the excessive reliance on fossil fuels. Consequently, the integration of wind power generation systems into high-rise buildings has attracted increasing attention in recent years. This study presents a case investigation of two adjacent elliptical vertical farm buildings with a cross-sectional axis ratio of 4:3, equipped with horizontal-axis wind turbines. Wind tunnel tests (WTTs) and computational fluid dynamics (CFD) simulations were conducted to examine the influence of the spacing-to-height ratio (D/H) on wind energy harvesting performance. The results indicate that the power generation capacity varies significantly when the D/H ratio ranges from 0.15 to 0.45, reaching a maximum at D/H = 0.20. Beyond this value, particularly when D/H exceeds 0.25, the enhancement effect diminishes, and the power generation potential gradually decreases. Furthermore, the proposed elliptical building configuration demonstrates superior performance under low wind speed conditions, achieving an increase in power generation of up to 347% compared with the reference case. These findings provide valuable insights into the aerodynamic design and optimisation of building-integrated wind energy systems in urban environments.