| FINITE ELEMENT ANALYSIS OF THE FREE EXTRUSION FLOWS OF BOGER FLUIDS |
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| 引用本文： | 范毓润,范西俊,路甬祥. FINITE ELEMENT ANALYSIS OF THE FREE EXTRUSION FLOWS OF BOGER FLUIDS[J]. 中国化学工程学报, 1994, 2(4): 187-197 |
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| 作者姓名： | 范毓润 范西俊 路甬祥 |
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| 作者单位： | Fan Yurun Fan Xijun Lu YongxiangDepartment of Mechanics，Zhejiang University，Hangzhou 310027，China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China and the Natural Science Foundationof Zhejiang Province |
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| 摘 要： | The stream-line finite element method proposed by Luo and Tanner has been improvedand used to simulate the extrudate swell of the so called Boger fluid.The element withdiscontinuous pressure proves to be a successful choice and superior to that with continuous pressureIt is revealed that the visccsity of Newtonian solvent of the Boger fluid has a great influence on thecalculated swelling.The Weissenberg number is suggested to take the place of recoverable shear strainin Tanner′s formula to estimate the swelling of the Boger or Oldroyd-B fluids.
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| 关 键 词： | finite element method extrusion flow Boger fluid |
| 收稿时间： | 1993-04-22 |
| 修稿时间： | 1993-12-3 |
FINITE ELEMENT ANALYSIS OF THE FREE EXTRUSION FLOWS OF BOGER FLUIDS |
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| FAN Yurun,FAN Xijun,LU Yongxiang. FINITE ELEMENT ANALYSIS OF THE FREE EXTRUSION FLOWS OF BOGER FLUIDS[J]. Chinese Journal of Chemical Engineering, 1994, 2(4): 187-197 |
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| Authors: | FAN Yurun FAN Xijun LU Yongxiang |
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| Affiliation: | Department of Mechanics, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | The stream-line finite element method proposed by Luo and Tanner has been improved and used to simulate the extrudate swell of the so called Boger fluid. The element with discontinuous pressure proves to be a successful choice and superior to that with continuous pressure. It is revealed that the viscosity of Newtonian solvent of the Boger fluid has a great influence on the calculated swelling. The Weissenberg number is suggested to take the place of recoverable shear strain in Tanner's formula to estimate the swelling of the Boger or Oldroyd-B fluids. |
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| Keywords: | finite element method extrusion flow Boger fluid |
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