Numerical Simulation Of Fluency And Temperature Distribution In Cooling Jacket For The Horizontal Continuous Casting

Starting from the N-S equation, the standard k-εturbulence model was used to calculate the flow field of cooling water in five molds which had the different importing and exporting structures in the design. The water flow distribution of cooling water in the five kinds of different structures was reflected in the form of graphics. It has found that the importing and exporting structure of cooling water has greater influence on the velocity distribution in the water jacket.According to the law of energy conservation and the result of computing fluency, by way of direct calculation, the temperature field distribution of crystallizes was calculated and at the same time it was reflected in the form of graphics. According to the result which was reflected from the graphic picture of cooling water, the entire temperature change of the process from the entrance to the exit can be controlled, consequently it can provide theoretical foundation for improving the quality of the billet.According to the result of calculating the fluency and the temperature field distribution in several water jackets which have different structures, some conclusions were drawn:At the inlet and outlet of cooling water, there would be a little zone in which the velocity of cooling water is high and the temperature of cooling water is low. In order to decline the influence of the zone reflecting on the water jacket, multiple inlets can be used when designing water jacket. But too many inlets would make it difficult that making the mould. So the structure of water cooling should be simple, and the cooling effect should be good.In addition, the direction of cooling water's entrance has impact to the fluency and temperature distributing in water jacket. If cooling water is put in water jacket vertically, there would be an extent around the horizontal line which include the point of intersection between entrance and water jacket where the velocity is low and the temperature is high. If cooling water is put in water jacket tangently, there would be an extent around the horizontal line which include the point of intersection between entrance and water jacket where the velocity is high and the temperature is low. Furthermore, the water jackets which have tangent water entrances are superiority to the water jackets which have vertical water entrances.For the purpose of increasing the equality of cooling the cast billet, cooling water should be put in the water jacket tangently and multi-entrance should be designed distributing around the mould equably. Such as the fifth water jacket in this thesis which has four entrance is superiority to the other water jackets in the thesis, and it's manufacture is not complex.