Numerical Evaluation of Wind Speed Influence on Accident Toxic Spill Consequences Scales

Abstract This study aims to evaluate numerically the influence of wind speed on scales environmental harmful consequences caused by accidentally spilled toxic liquid evaporated from surface a free-form outlined spill spot. A coupled problem gas-dynamic movement air-mixture cloud in atmosphere’s layer under and negative inhalation impact human an accident zone is solved means mathematical modelling computer experiment. three-dimensional non-stationary model turbulent gas-air mixture used for obtaining distribution relative mass concentration gas impurities time space. probabilistic based using modernized probit analysis method obtain fields conditional probability fatal injury resulting inhalation. technique allows safety experts assessing scale considered type technogenic depending conditions elaborating mitigate them acceptable levels.