This study aims to employ numerical simulations to understand the dynamics of wind fields and air pollutant dispersion in the proximity of a nuclear plant, situated within a specified urban environment. By leveraging computational fluid dynamics (CFD) combined with geographical information system (GIS) data, the research comprehensively models atmospheric interactions in terms of wind flow patterns, building-induced pressure variances, and pollutant trajectories. The computational domain extends over an area of \(8.8\,\textrm{km} \times 8.4\,\textrm{km}\), vertically stretching to 0.5 km. The wind and pollutant distribution equations are discretized using the finite volume method, providing detailed insights into fluid interactions with urban topographies. Key findings highlight the profound influences of terrain, urban structures, and wind flow behavior on the dispersion of radioactive aerosols, shedding light on potential risks and safety protocols for nuclear plant environments.

本研究旨在利用数值模拟来了解特定城市环境中核电站附近风场和空气污染物扩散的动态。通过利用计算流体动力学 (CFD) 与地理信息系统 (GIS) 数据相结合，该研究从风流模式、建筑物引起的压力变化和污染物轨迹方面全面模拟了大气相互作用。计算域的范围为\(8.8\,\textrm{km} \times 8.4\,\textrm{km}\)，垂直延伸至 0.5 km。使用有限体积法对风和污染物分布方程进行离散化，为流体与城市地形的相互作用提供了详细的见解。主要发现强调了地形、城市结构和风流行为对放射性气溶胶扩散的深远影响，揭示了核电站环境的潜在风险和安全协议。