Studies of vegetation effect on turbulence dynamics in an urban canopy layer using large eddy simulation

IF 6.9 2区工程技术 Q1 ENVIRONMENTAL SCIENCES

Urban Climate Pub Date : 2025-09-27 DOI:10.1016/j.uclim.2025.102628

Andrey Glazunov , Evgeny Mortikov , Andrey Debolskiy

引用次数: 0

Abstract

Using large eddy simulations (LES), we investigated the flow dynamics in the vegetated urban canopy layer (UCL). A LES model was used in which large objects (buildings) were explicitly specified as solid walls and vegetation (trees) was modeled by introducing additional volumetric drag in momentum equations. Simplified urban canopy geometries with relatively low plan area density were used. We analyzed influence of the foliage drag on the form drag from the buildings, the turbulent length scales and the kinetic energy balances. A new approach for calculating form drag in the presence of vegetation in UCL is proposed.

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利用大涡模拟研究植被对城市冠层湍流动力学的影响

利用大涡模拟（LES）研究了城市植被冠层（UCL）的流动动力学。在LES模型中，大型物体（建筑物）被明确指定为实体墙，植被（树木）通过在动量方程中引入额外的体积阻力来建模。采用相对较低平面面积密度的简化城市冠层几何形状。分析了叶片阻力对建筑形态阻力、湍流长度尺度和动能平衡的影响。提出了一种计算有植被存在的UCL地形阻力的新方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Urban Climate Social Sciences-Urban Studies

CiteScore

9.70

自引率

9.40%

发文量

286

期刊介绍： Urban Climate serves the scientific and decision making communities with the publication of research on theory, science and applications relevant to understanding urban climatic conditions and change in relation to their geography and to demographic, socioeconomic, institutional, technological and environmental dynamics and global change. Targeted towards both disciplinary and interdisciplinary audiences, this journal publishes original research papers, comprehensive review articles, book reviews, and short communications on topics including, but not limited to, the following: Urban meteorology and climate[...] Urban environmental pollution[...] Adaptation to global change[...] Urban economic and social issues[...] Research Approaches[...]