| Modeling and simulation of heat transfer for glass bulb mold |
| |
| 作者姓名： | ZHOU Huamin LI Dequn |
| |
| 作者单位： | State Key Laboratory of Mold & Die Technology, Huazhong University of Science and Technology, Wuhan 430074, China,State Key Laboratory of Mold & Die Technology, Huazhong University of Science and Technology, Wuhan 430074, China |
| |
| 摘 要： | Cooling system design in glass bulb pressing operation can greatly affect the productivity and the quality of the final product. The concept of cyclic-averaged steady temperature field is proposed in modeling. Heat transfer in the mold region is considered to be a cyclic-steady, three-dimensional conduction; heat transfer within the glass melt region is treated as a transient, one-dimensional conduction; heat exchange between the cooling system surface and coolant is treated as a steady heat convection. A hybrid model consisting of a three-dimensional boundary element method for the mold region and a finite-difference method with a variable mesh for the melt region is used for numerical simulation. Compared with the experimental data, the numerical model developed here is computationally efficient and sufficiently accurate.
|
| 关 键 词： | glass bulb mold numerical simulation boundary element method cyclic-averaged steady temperature field. |
Modeling and simulation of heat transfer for glass bulb mold |
| |
| ZHOU Huamin,LI Dequn.Modeling and simulation of heat transfer for glass bulb mold[J].Progress in Natural Science,2005,15(7):650-655. |
| |
| Authors: | Zhou Huamin Li Dequn |
| |
| Institution: | State Key Laboratory of Mold & Die Technology, Huazhong University of Science and Technology, Wuhan 430074, China |
| |
| Abstract: | Cooling system design in glass bulb pressing operation can greatly affect the productivity and the quality of the final product. The concept of cyclic-averaged steady temperature field is proposed in modeling. Heat transfer in the mold region is considered to be a cyclic-steady, three-dimensional conduction; heat transfer within the glass melt region is treated as a transient, one-dimensional conduction; heat exchange between the cooling system surface and coolant is treated as a steady heat convection. A hybrid model consisting of a three-dimensional boundary element method for the mold region and a finite-difference method with a variable mesh for the melt region is used for numerical simulation. Compared with the experimental data, the numerical model developed here is computationally efficient and sufficiently accurate. |
| |
| Keywords: | glass bulb mold numerical simulation boundary element method cyclic-averaged steady temperature field |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《自然科学进展(英文版)》浏览原始摘要信息 |
| 点击此处可从《自然科学进展(英文版)》下载免费的PDF全文 |
