| 用落球法测量悬浮体表观粘度 |
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| 引用本文： | 韦鲁滨,陈清如,赵跃民.用落球法测量悬浮体表观粘度[J].过程工程学报,2000,21(2):187-190. |
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| 作者姓名： | 韦鲁滨 陈清如 赵跃民 |
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| 作者单位： | 1. 中国矿业大学化工与环境工程系,北京 100083 科院化工冶金研究所多相反应开放实验室,北京 100080
2. 中国矿业大学化工与环境工程系,北京 100083 |
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| 基金项目： | 国家自然科学基金(编号:
59774009)和煤炭科学基金资助项目 |
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| 摘 要： | 采用落球法测量了密相气固流化床表观粘度,发现流化床的流变特性可用Bingham粘塑性模型描述,床层的有效粘度可由下式计算
μ
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| 关 键 词： | 流化床 表观粘度 测量 落球法 |
| 文章编号： | 1001-2052(2000)02-0187-04 |
| 修稿时间： | 1999年4月16日 |
Measuring the Viscosity of Fluidized Suspension Using Falling Spheres |
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| WEI Lu-bin.Measuring the Viscosity of Fluidized Suspension Using Falling Spheres[J].Chinese Journal of Process Engineering,2000,21(2):187-190. |
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| Authors: | WEI Lu-bin |
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| Abstract: | The viscosity of fluidized gas-solid dispersion was measured using falling spheres. The rheological characteristics can be described by the Bingham fluid model. The relationship between efficient viscosity of fluidized beds ue, plastic viscosity u, yield stress to, sphere size d. and relative velocity between falling sphere and fluidized particles ur is expressed as ue = u t0do/3ur. The plastic viscosity and yield stress of fluidized dispersion can be obtained by linear regression of experimental data. |
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| Keywords: | fiuidized bed apparent viscosity measurement falling sphere method |
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