Abstract
After a harmful gas diffusion accident occurs on ships, grasping the harmful gas diffusion behavior and possible impact range is the key to emergency rescue. In this paper, a Gaussian plume model is used to construct a simulation system for the diffusion of harmful gases from ships, and four comparative experiments are designed. The simulation is realized based on MATLAB platform programming. Under the conditions of different geographical locations, time periods and meteorological conditions when the accident occurs, the distribution of harmful gas diffusion concentration and the range of influence are analyzed. This work may provide a scientific basis for evacuation and emergency response plan formulation in the water area surrounding the accident.
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