摘要
Taking refined forecasting model of oil pollution as basic target,this pa-per widely deals with the theory and method of refined simulation of turbulent two-phaseflow.The two-fluid model of turbulent buoyant recirculating two-phase flow and the cor-responding method of numerical computation are developed in this paper.The motion ofeach phase is described by a unified multi-fluid model in an Eulerian coordinate system.The laws of turbulent transportation for each phase,and the restriction of each other be-tween the two phases are completely simulated.The complex two-phase turbulence withbuoyancy and recirculating flow is selected to examine numerically.Comparison of the re-sults of numerical simulation with the experimental data is conducted.Then the forecastsfor oil-water two-phase turbulence are carried out.It has been shown that the results ofnumerical simulation are satisfactory.
Taking refined forecasting model of oil pollution as basic target,this pa- per widely deals with the theory and method of refined simulation of turbulent two-phase flow.The two-fluid model of turbulent buoyant recirculating two-phase flow and the cor- responding method of numerical computation are developed in this paper.The motion of each phase is described by a unified multi-fluid model in an Eulerian coordinate system. The laws of turbulent transportation for each phase,and the restriction of each other be- tween the two phases are completely simulated.The complex two-phase turbulence with buoyancy and recirculating flow is selected to examine numerically.Comparison of the re- sults of numerical simulation with the experimental data is conducted.Then the forecasts for oil-water two-phase turbulence are carried out.It has been shown that the results of numerical simulation are satisfactory.
基金
Project supported by the National Natural Science Foundation of China.
