A Study on Mesoscale Atmospheric Dispersion of Radioactive Particles Released from Nuclear Power Plants

원전부지 주변 국지순환에 따른 방사성 물질의 대기확산 특성 연구

  • 이갑복 (한국전력공사 전력연구원) ;
  • 이명찬 (한국전력공사 전력연구원) ;
  • 송영일 (한국전력공사 전력연구원)
  • Published : 1997.12.30

Abstract

A three dimensional sea-land breeze model and Lagrangian particle dispersion model have been employed for the study on the mesoscale atmospheric dispersion of radioactive materials released from Wolsung NPPs. In this study, atmospheric dispersion simulations are carried out under two synoptic weather conditions : the geostrophic flow is a weak northerly wind(CASE 1) and a strong northerly wind(CASE 2) on a clear day in spring. The results show that atmospheric dispersion is affected by sea-land breeze and the recirculation of particles by the change of wind direction between sea breeze and land breeze plays an important role in atmospheric concentration distribution of radoactive materials.