Coupled Fluid-Thermal Finite Element Analysis of Droplike-Shape-Spacer Nozzle’s Fluid Field of Al Roll-Casting

Abstract:

A three-dimensional finite element simulation model of fluid field including front-box and droplike-shape-spacer nozzle of aluminum roll-casting has been developed to provide analyzing distribution of velocity and temperature of outlet of nozzle. The computation was performed by using coupled fluid-thermal FEM simulation of FLOTRAN module in ANSYS 6.0. The boundary conditions of the roll-casting model of fluid and thermal fields, were loaded on front-box and nozzle. Based on the data from postprocessing function of ANSYS, the strict result analysis was conducted by MATLAB. Results based on the allowable inhomogeneity of velocity and temperature of outlet show the most possible broken regions of outlet could be predicted in the case of speed increasing of the drawing-sheet and thickness reducing of the aluminium sheet. Droplike-shape-spacer nozzle in this example only applied to normal speed, and must be optimized to be appropriate in high roll cast speed.

• Periodical: Advanced Materials Research (Volumes 129-131)
• Pages: 640-644
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.129-131.640
• Online since: August 2010
• Authors: Ying Zhou
• Keywords: Coupled Fluid-Thermal Analysis, Droplike-Shape-Spacer Nozzle, Finite Element Analysis (FEA), Roll Cast

References

[1] Information on http: /www. gov. cn/zwhd/2006-04/25/content_263783. htm.

[2] T. Haga: A high speed twin toll caster for aluminum alloy strip, Journal of Materials Processing Technology, vol. 113(2001), pp.291-295.

DOI: 10.1016/s0924-0136(01)00673-2

[3] R. Cook, P.G. Grocock, P.M. Thomas, D.V. Edmonds, and J.D. Hunt: Development of the twin-roll casting process, Journal of Materials Processing Technology, vol. 55(1995), pp.76-84.

DOI: 10.1016/0924-0136(95)01788-7

[4] C.G. Kang, and Y.D. Kim: Model experiments for the determination of the heat-transfer coefficient and transition thermal analysis in the direct rolling process, Journal of Materials Processing Technology, vol. 84(1998), pp.210-224.

DOI: 10.1016/s0924-0136(98)00223-4

[5] Huey-Jiuan Lin: Modelling of flow and heat transfer in metal feeding system used in twin roll casting, Modelling and Simulation in Materials Science and Engineering, 2004, 12(2), pp.255-72.

DOI: 10.1088/0965-0393/12/2/007

[6] Saxena Amit, Sahai Yogeshwar: Modeling of fluid flow and heat transfer in twin-roll casting of aluminum alloys. Materials Transactions, vol. 43(2002), pp.206-213.

DOI: 10.2320/matertrans.43.206

[7] Nastac, L.; Li, B.Q. . Modeling of single-roll strip casting of Al-1%Mn alloy: correlation of strip thickness, solidification zone length and puddle shape. Multiphase Phenomena and CFD Modeling and Simulation in Materials Processes Symposium. (2004).

[8] Kang C G, Kim Y D. Model experiments for the determination of the heat-transfer coefficient and transition thermal analysis in the direct rolling process. Journal of Materials Processing Technology, vol. 84(1998), pp.210-224.

DOI: 10.1016/s0924-0136(98)00223-4

[9] Ying Zhou, Ming-hui Huang, Da-heng Mao, Tao Liang: 3-D Coupled Fluid-thermal Finite Element Analysis of 3C-style Nozzle's Fluid Field of Al Roll-casting, Materials Science Forum. Vol. 546-549(2007), pp.741-744.

DOI: 10.4028/www.scientific.net/msf.546-549.741

[10] Liang Tao: Research on Numerical Simulation of Heat Transfer and Thermal Crowning of Roll Shell during Twin-roll Casting, Ph.D. thesis. College of Mechanical and Electrical Engineering, Central South University, Changsha, China (2002).

[11] Information on http: /www. simwe. com.

[12] ZHOU Ying, HUANG Ming-hui, and ZHONG Jue: Rationality of FEA model in fluid fields of aluminum roll-casting, The Chinese Journal of Nonferrous Metals. Vol. 15(2005), pp.1100-1106.