抄録
Behavior of multi-port submerged buoyant jet is very complicated especially in ascending region to surface. Mixing and dilution process is 3-dimensional, which makes us to use hydraulic model experiment and accompanying 2-dimensional simulation with virtual outlet to predict the dispersion area of warm water discharged from power plant. According to the development of super computer, a 3-dimentional turbulent closure model has been applied to simulate the initial mixing of discharged buoyant jet and following dispersion at surface in a coastal ocean, simultaneously. However, it still needs long computational time and a large computer resource. A simple 2-dimensional model using virtual outlet is proposed to approximately simulate the dispersion of submerged buoyant jet in surface layer, where virtual outlet can be easily decided without hydraulic experiment or 3-dimentional simulation.
