| 应用链式硬球模型计算流体的自扩散系数 |
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| 引用本文： | 佟庆远,高光华,于养信. 应用链式硬球模型计算流体的自扩散系数[J]. 工程热物理学报, 2002, 23(6): 675-677 |
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| 作者姓名： | 佟庆远 高光华 于养信 |
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| 作者单位： | 清华大学化学工程系,北京,100084 |
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| 摘 要： | 将链式硬球模型流体方程用于计算实际高密度流体的自扩散系数,并与流体的试验数据或模拟数据相比较。使用该方程计算碳链长度在150以下压力在200MPa以下;平均温度在100K以上时,非极性自扩散系数的平均绝对偏差多为5％左右。
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| 关 键 词： | 模型 链式硬球模型方程 自扩散系数 |
| 文章编号： | 0253-231X(2002)06-0675-03 |
| 修稿时间： | 2001-11-13 |
CALCULATION OF SELF-DIFFUSION COEFFICIENT BY THE HARD SPHERE CHAIN EQUATION |
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| TONG Qing-Yuan GAO Guang-Hua YU Yang-Xin. CALCULATION OF SELF-DIFFUSION COEFFICIENT BY THE HARD SPHERE CHAIN EQUATION[J]. Journal of Engineering Thermophysics, 2002, 23(6): 675-677 |
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| Authors: | TONG Qing-Yuan GAO Guang-Hua YU Yang-Xin |
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| Abstract: | The self-diffusion coefficients of the real compressed fluids at high densities in the hard sphere chain equation are calculated. Compared with the data of experiments or molecular simulations, the result shows that most of average absolute different (AAD) of the self-diffusion coefficient calculated by the method is about 5% when the pressure is lower than 300 MPa and the temperature is higher than 100 K. |
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| Keywords: | model self-diffusion coefficient hard sphere chain equation |
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