| Young-Laplace方程推导的新方法及应用 |
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| 引用本文： | 张茂林,梅海燕,李闽,孙良田,李士伦,吴清松. Young-Laplace方程推导的新方法及应用[J]. 西南石油学院学报, 2002, 24(5): 43-45 |
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| 作者姓名： | 张茂林 梅海燕 李闽 孙良田 李士伦 吴清松 |
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| 作者单位： | [1]西南石油学院石油工程学院，四川南充637001 [2]中国科学技术大学，安徽合肥230026 |
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| 基金项目： | “油气藏地质及开发工程国家重点实验室”开放基金资助项目 (PLN990 2 ) |
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| 摘 要： | Young-Laplace方程成熟的推导方法是从物理化学的基本概念和热力学基本原理出发，根据热力学基本方程和化学位的定义，得到存在界面相时的热力学平衡判据和名的Young-Laplace方程。从整个物质体系的界面能和位能计算出发，根据热力学平衡条件下整体物质体系的总能量应该达到最小，同样可以得到名的Young-Laplace方程。最后给出了考虑毛细管压力的相平衡模型及应用实例。
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| 关 键 词： | Young－Laplace方程 推导 新方法 应用 热力学 界面能 位能 相平衡 油气田 |
| 文章编号： | 1000-2634(2002)05-0043-03 |
| 修稿时间： | 2002-02-22 |
A New Derivation Method and the Application of Young-Laplace Equation |
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| ZHANG Mao-lin. A New Derivation Method and the Application of Young-Laplace Equation[J]. Journal of Southwest Petroleum Institute, 2002, 24(5): 43-45 |
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| Authors: | ZHANG Mao-lin |
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| Abstract: | The derivation method of the thermodynamic equilibrium criterion is based on the basic conception of physical chemistry and the basic thermodynamic principle, and combined with the thermodynamic basic equation and the definition of the chemical potential. The well-known Young-Laplace equation is obtained as a result of the derivation. A new derivation method of the Young-Laplace equation is also presented, based on the interfacial energy, the potential energy, and the total energy of the whole material system which should be minimum on the thermodynamic equilibrium condition. The phase equilibrium calculation model and application examples considered capillary pressure is showed at the end of this paper. |
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| Keywords: | Young-Laplace equation thermodynamics interfacial energy potential energy phase equilibrium. |
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