[3B01-10] Dose Estimation

[3B06] Study on the formation processes of air concentration of a radioactive material and dose rate distributions

*HIROMASA NAKAYAMA¹, Daiki Satoh¹, Masanao Kadowaki¹ (1. JAEA)

Keywords:LHADDAS, high-resolution atmospheric dispersion simulation, dose estimate, hilly-terrain, turbulence

We perform a numerical simulation of unsteady behaviors of turbulent flow and plume dispersion over a 2-dimensional hill by a local-scale high-resolution atmospheric dispersion and dose assessment system (LHADDAS). Then, we investigate the formation processes of air concentration and dose rate distributions over the hill from the viewpoint of the turbulent structures.