| 粒子间势力对单分散稳定系统粒子沉降的影响 |
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| 引用本文： | 王浩,温景嵩.粒子间势力对单分散稳定系统粒子沉降的影响[J].大气科学,1999,23(2):248-256. |
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| 作者姓名： | 王浩 温景嵩 |
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| 作者单位： | 南开大学物理系,天津 300071 |
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| 基金项目： | 国家自然科学基金资助项目49875003 |
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| 摘 要： | 粒子间势力的存在，对于悬浮粒子系统的沉降过程的影响，是一个尚未很好解决的问题，其中的一个关键难题是粒子间势的问题。本文对以往围绕此问题的研究工作——包括模型方法和采用势的近似表达式的直接计算方法做了分析，进而提出了对稳定系统中粒子间势力的处理方法，计算了势力对单分散系统沉降系数的影响，并与实验做了比较。结果表明，文中提出的处理方法能够成立，较之以往的方法更为完善。
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| 关 键 词： | 粒子沉降 沉降系数 vanderWaals分子引力势 双电荷层斥力势 |
Effects of Interparticle Potential on the Sedimentation of Monodisperse Colloid System |
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| Wang Hao and Wen Jingsong.Effects of Interparticle Potential on the Sedimentation of Monodisperse Colloid System[J].Chinese Journal of Atmospheric Sciences,1999,23(2):248-256. |
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| Authors: | Wang Hao and Wen Jingsong |
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| Abstract: | The effects of interparticle potential on the sedimentation of colloid system is still anunsolVed problem. An important difficult problem is how to formulate the interparticle potential in astable system. People can only depend on some models now. Here we investigate three previous modelsof interparticle potential and present a new and more reasonable method to deal with the interparticlepotential in monodisperse system. Moreover;; some numerical calculations are made and the results arecompared with experiments. The comparison shows that the new method is better than the previousones. |
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| Keywords: | sedimentation sedimentation coefficient van der Waals attractive potentialdouble layer repulsive potential |
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