| 非牛顿流体的非等温搅拌流动 |
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| 引用本文： | 华律,戴志潜.非牛顿流体的非等温搅拌流动[J].化工学报,1995,46(3):343-348. |
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| 作者姓名： | 华律 戴志潜 |
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| 作者单位： | 浙江大学力学系CAD&CG国家重点实验室!杭州310027,浙江大学力学系CAD&CG国家重点实验室!杭州310027,浙江大学力学系CAD&CG国家重点实验室!杭州310027 |
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| 基金项目： | 国家自然科学基金，化学工程联合实验室聚合反应工程实验室开放基金 |
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| 摘 要： | 采用流线迎风Petrov-Galerkin(SUPG)有限元解能量方程与一般Galerkin有限元解动量方程相结合的方法对Carreau流体的非等温搅拌流场进行了数值模拟。并与牛顿流体等温搅拌流动的相应结果作了比较,表明剪切变稀和温度效应对搅拌流动的流型、温度分布产生很大的影响。冷模试验结果应用于热模工况时会产生较大的误差。
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| 关 键 词： | 搅拌流动 非牛顿流体 非等温流体 Carreau模型 |
NON - ISOTHERMAL AGITATED FLOW FIELDS OF NON - NEWTONIAN FLUIDS |
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| Hua Lu,Dai Zhiqian and Fan Xijun.NON - ISOTHERMAL AGITATED FLOW FIELDS OF NON - NEWTONIAN FLUIDS[J].Journal of Chemical Industry and Engineering(China),1995,46(3):343-348. |
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| Authors: | Hua Lu Dai Zhiqian and Fan Xijun |
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| Abstract: | In this paper, the streamline upwind Petrov - Galerkin (SUPG) F E M and Galerkin F E M are used to simulate the non - isothermal flow of the Carreau fluid in an agitated vessel induced by scraped -surface blades. The results show a great deviation from the isothermal Newtonian flow, and indicate that the power - law exponent n, temperature coefficient b, dimensionless groups Re, Pe, and Br have a distinct effect on the flow pattern. This work provides an effective numerical method for predicting the velocity profile, temperature, shear rate and shear stress distribution of non - isothermal, non - Newtonian -flow in an agitated vessel. |
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| Keywords: | SUPG F E M Galerkin F E M agitated vessel Carreau model non - isothermal |
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