研究出一个表示连铸机中间包内的湍流流动和混合的数学模型,该模型包括求解三维湍流Navier-Stokes方程和K-ε两方程的湍流模型.对矩形断面中间包的流动参数和停留时间作出了预报,然后又用这一模型预报一般工业用的中间包流场,这种中间包的侧墙是稍有倾斜,而不是垂直的.结果表明,流场起了变化,这一点也可能对工业上的应用产生重大影响.把理论上的预报结果与水模型中的测量值作了比较.对中间包内的流场的认识也是设计最优化的依据.
A mathematical model torepresent turbulent fluid flow and mixing incontinuous casting tundishes has been developed. The model involves solution ofthe three-dimensional turbulent Navier-Stokes equation, turbulence being modeledby the so-called K-ε, two-equation model. Fluid flow parameters and residence timedistribution has been predicted in a tundish of rectangular cross section. The modelis later extended to predict fluid flow in typical industrial tundishes where wallsare not vertical, but slightly inclined from the vertical. This results in an interest-ing variation in fluid flow, which may have important technological implications.The theoretical predictions are compared with the measurements obtained in watermodels. The detailed understanding of the hydrodynamics of the tundish flow canbe used to optimize the design for steel cleanliness.
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| [3] | |
| [4] | |
| [5] | |
| [6] | |
| [7] |
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