| 沈海军.碳纳米管在水中的运动阻力特性[J].计算力学学报,2009,26(4):552~556 |
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| 碳纳米管在水中的运动阻力特性 |
| Kinetic resistance of Carbon nano-tubes in water |
| 投稿时间：2007-07-06 |
| DOI：10.7511/jslx20094019 |
| 中文关键词: 碳纳米管 水 运动阻力 分子动力学 圆柱绕流 |
| 英文关键词:open hole completion screw drilling casing mechanical property FEM |
| 基金项目:南京航空航天大学科研创新基金(05-Y0315)资助项目. |
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| 中文摘要: |
| 采用分子动力学(MD)方法,模拟了(5,5),(7,7),(10,10)以及(5,5)／(10,10) 碳纳米管在水中的速度衰减过程,得到了它们的阻力-速度与阻力-雷诺(Re)数关系曲线,进而将MD模拟的阻力结果与低Re数宏观流体力学(MFD)中圆柱绕流的阻力解进行了对比。研究表明,低Re数下,碳纳米管在水中的阻力要比传统MFD中圆柱绕流的阻力解高数十倍。碳纳米管在水中的阻力可通过圆柱的MFD解乘以(48.58-0.54Re)近似估算。 |
| 英文摘要: |
| By using the MD (Molecular Dynamics)method, the deceleration of (5,5), (7,7), (10,10) and (5,5)／(10,10) carbon nano-tubes is simulated in water; their curves of resistance-velocity and resistance-Re(Reynolds) number are obtained; further the MD results are compared with the theoretical results of cylinder in water, i.e. the classical MFD(Macroscopic Fluid Dynamics) results for low Re number. It is shown that, under the low Re number, the resistance of the carbon-tubes in water is higher than the MFD results by several ten times, and it can be estimate through the MFD results multiplied by (48.58-0.54Re). |
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