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<p>We test whether orientation rules in the Eight Mansions (Ba Zhai) tradition align with microclimatic comfort in a hot–humid setting. Using CFD coupled with the Universal Thermal Climate Index (UTCI), we simulated 24 rotational orientations of a typical ancestral hall in Quanzhou, China, under summer boundary conditions. Orientations aligning the courtyard opening with prevailing south-easterly winds produced lower median UTCI, with inter-orientation differences of ~0.3 °C. Across orientations, mean radiant temperature varied little, whereas airflow differences dominated comfort outcomes. ‘Auspicious’ categories overlapped with the best-performing orientations, and Feng Shui scores correlated with UTCI (ρ = −0.60, p = 0.002) in this case study. The results frame traditional orientation heuristics as testable hypotheses and suggest context-specific pathways for climate-adaptive conservation and design.</p>

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Heritage knowledge meets microclimate: CFD–UTCI validation of Eight Mansions orientation in southern Fujian, China

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月10日

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  • Yaolong Wang,
  • Jiarui Xu,
  • Yingning Shen,
  • Lei Wang,
  • Fengliang Tang,
  • Tiantian Huang,
  • Tingfeng Liu,
  • Zefa Wang

摘要

We test whether orientation rules in the Eight Mansions (Ba Zhai) tradition align with microclimatic comfort in a hot–humid setting. Using CFD coupled with the Universal Thermal Climate Index (UTCI), we simulated 24 rotational orientations of a typical ancestral hall in Quanzhou, China, under summer boundary conditions. Orientations aligning the courtyard opening with prevailing south-easterly winds produced lower median UTCI, with inter-orientation differences of ~0.3 °C. Across orientations, mean radiant temperature varied little, whereas airflow differences dominated comfort outcomes. ‘Auspicious’ categories overlapped with the best-performing orientations, and Feng Shui scores correlated with UTCI (ρ = −0.60, p = 0.002) in this case study. The results frame traditional orientation heuristics as testable hypotheses and suggest context-specific pathways for climate-adaptive conservation and design.