Under the condition of strong wind,the combination of hot air recirculation and ' intrusion' phenomenon results in the reduction of heat transfer efficiency of air cooling condenser.In order to improve the impact of environmental wind on air cooling condenser,this paper proposed the scheme that installed the windbreak on the leeward side of air cooling island(in the dominant wind direction).Taking a 600 MW direct air cooling unit as an example,the external flow field of air cooling island was numerically si...