复杂厂址下污染物扩散的模拟研究

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中图分类号：X511

文章编号：1674-6139（2025）05-0042-06

文献标志码：B

Simulation Analysis of Pollutant Dispersion at Complex Plant Sites

Li Yu1，2 ，Li Hangyun³，Li Yunpeng1，²，Yao Rentai1，²，Guo Dongpeng4

（1 China Institute for Radiation Protection，Taiyuan O3Oo6，China;

2 CNNCKey Laboratoryof Simulationand Assessment Technology for Nuclear Environment，Taiyuan O30o06，China; 3 China Nuclear Power Engineering Co.，Ltd.Hebei Branch，Shijiazhuang O5O01，China；

4 Taiyuan University of Science and Technology，Taiyuan O3oO24，China）

Abstract：ThisarticleselectsacomplexplantsitetoconductwindtunnelexperimentsandCFDnumericalsimulationbasedonteactualterrainoftesiteByomparingthefowfeldandoncentratiosultsofumercalsimulatioandwidtuelexperimentsitisfound thatbothhowconsistenttrendsofchang，withtheflowfeldresultswithin1.7timesofeachother.Teumericalsimulationresultsana lyzedthempactofteunderlyingsuaceoteowfeldandconcentratiounderdiferentwinddiretios，ithteveloiyeficitusd by the mountain effect ranging from 75% to 81% ，and the maximum variation range of the ground-level diffusion factor for polltants under diferentiddetiosngi.isOveralaosidedslatielyietofrtdfar -fieldflowand diffusionovercomplexterrainand buildings，buttherearecertaindiferencesnearthegroundsurface.

Key words：nuclear power plant；atmospheric diffusion；numerical simulation；wind tunnel experiment

前言

核电厂放射性核素在大气环境中的迁移与扩散备受关注，而了解核电厂正常工况下释放到环境中的放射性核素的迁移规律，对于核电厂的规划以及环境影响评价具有重要意义[]。（剩余5940字）