Street canyon warming is influenced by both solar-heated walls and anthropogenic heat releasing. This study aims to evaluate the relative importance of anthropogenic heat emissions and wall heat fluxes induced by realistic solar heating on the air temperature in 2D street canyons. Computational fluid dynamics (CFD) simulations were conducted, considering two anthropogenic heat emitting locations (from side-wall or roof-top), three building-height arrangements (uniform-height, varied-height, elevated buildings), two aspect ratios (H/W = 1 or 3) and two wall heating patterns: leeward-wall heating (L-H, representing 9 a.m.), all-wall heating (A-H, representing 7 p.m.).

中文翻译：

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人为热量和墙壁热通量对街道峡谷变暖的相对重要性：多物理场数值模拟


街道峡谷变暖受太阳能加热墙和人为热量释放的影响。本研究旨在评估真实的太阳加热引起的人为热发射和壁热通量对 2D 街道峡谷空气温度的相对重要性。进行了计算流体动力学 （CFD） 模拟，考虑了两个人为热量排放位置（从侧墙或屋顶）、三种建筑高度布置（均匀高度、可变高度、高架建筑物）、两个纵横比（H/W = 1 或 3）和两种墙壁加热模式：背风墙加热（L-H，代表上午 9 点）、全墙加热（A-H，代表晚上 7 点）。