基于Morris's OAT设计的海水入侵数值模拟灵敏度分析

In this paper, the sensitivity of simulated intrusion distance and the length of mixing zoon to some factors, including influx of freshwater, tidal effect, permeability, porosity, dispersivity, diffusivity, viscosity, compressibility of soil and compressibility of fluid, was analysised with Morris's OAT design. It's included that the sensitivity of simulated results vary with depth. The most sensitivity factors include permeability, tidal effect, influx of freshwater and dispersivity. The simulated results increase with increase of permeability, porosity, amplitude of tide and influx of freshwater, and decrease of diffusivity.