Numerical Simulation Of Ice Jam Based On FLUENT

Ice is a common phenomenon in the rivers of cold regions. Rivers in these regions often form the ice cover, the ice jam or the ice dam in winter, and they will bring various ice disasters. Nowadays with the rapid development of the computer technology, the mathematic model is adopted more and more when it comes to study in ice-water two-phase flow. The mathematical model has become an important method when studying in the ice-water two-phase flow due to its characteristics of convenience, high effectiveness and low cost. According the heat transmission theory and the method of Numerical Heat Transfer, by using the Solidification/Melting calculation model in FLUENT , simulations of River ice jam formation and melting are researched on parameter changes of different temperature in section and ice thickness undering conditions of different flow velocity,temperature and wind speed. The results of calculation reveal that: thickness of Ice sheet formation can increase by reducing entrance flow velocity, reducing air temperature and increasing wind speed, etc. Increasing entrance flow velocity,Increasing air temperature and reducing wind speed, etc. will speed up the melting ice sheet. This paper makes comparative investigation on ice thickness between accumulation experiment under the ice sheet in Laboratory U-Curve and numerical simulation. The Result of Comparison show that: The maximum ice thickness occurred on 0°-cross section. Thickness of ice sheet in curve convex bank increases gradually with cross-section angle increasing, while reducing gradually in concave bank. Increasing the speed of water flow under the ice sheet will reduce the thickness of ice sheet .