| 分子动力学模拟高温高压下水的粘度 |
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| 引用本文： | 张钧惠,张欣,兰美华.分子动力学模拟高温高压下水的粘度[J].黑龙江八一农垦大学学报,2016(4):89-92,134. |
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| 作者姓名： | 张钧惠 张欣 兰美华 |
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| 作者单位： | 1. 黑龙江八一农垦大学工程学院,大庆,163319;2. 大庆钻探工程公司钻井工程技术研究院;3. 大庆钻探工程公司地质录井一公司 |
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| 摘 要： | 由于高温高压的极端条件实验室很难实现,因此应用分子动力学方法模拟计算水在高温高压下的粘度成为一种重要的手段。模拟实验基于分子动力学方法,针对水分子的特殊结构,引入Ewald法求长程作用力和四元素法,采用等温等压条件,最终模拟得到不同温度、压强下水的粘度并与实验值进行比较分析。
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| 关 键 词： | 分子动力学 长程作用力 等温等压 四元素法 剪切应力 粘度 |
Water Viscosity of Molecular Dynamics Calculations under Different Temperatures and Pressure |
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| Zhang Junhui;Zhang Xin;Lan Meihua.Water Viscosity of Molecular Dynamics Calculations under Different Temperatures and Pressure[J].Journal of Heilongjiang August First Land Reclamation University,2016(4):89-92,134. |
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| Authors: | Zhang Junhui;Zhang Xin;Lan Meihua |
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| Institution: | Zhang Junhui;Zhang Xin;Lan Meihua;College of Engineering,Heilongjiang Bayi Agricultural University;Daqing Oilfield Drilling Engineering and Technology Institute;No.1 Logging Company,Daqing Drilling and Exploration Engineering Corporation; |
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| Abstract: | It is difficult to achieve in the lab under the extreme conditions of high temperature and high pressure,therefore,it is an important method to calculate the water viscosity in high temperature and high pressure by using molecular dynamics simulation. Based on molecular dynamics simulation and special structure of water molecules,this paper introduced Ewald method for long-range force and four-element method. Finally,the viscosity under different temperature and pressure was simulated in the isothermal isobaric system,and the results were compared with the experimental value. |
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| Keywords: | molecular dynamics long-range force isothermal pressure control four-element method shear stress viscosity |
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