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Effect of Molecular Interactions between the Solid Wall and Liquid on the Flow Properties in Microtubes

Effect of Molecular Interactions between the Solid Wall and Liquid on the Flow Properties in Microtubes
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摘要 The flow properties in microtubes, such as velocity profiles and pressure distributions, are different from those in macrotubes. We attribute this phenomenon to the molecular interactions between the solid wall and inner liquid. The apparent viscosity, which takes into consideration the molecular interactions, is introduced in the present study and the Navier-Stokes equations are solved. Water is adopted in the calculation. For the hydrophilic material wall, the water is more like to adhere to the wall. The velocity near the wall is smaller than that of conventional theory, while the centerline velocity and pressure gradients are much larger. Such a phenomenon becomes much more obvious with the decrease in tube diameter. The flow properties in microtubes, such as velocity profiles and pressure distributions, are different from those in macrotubes. We attribute this phenomenon to the molecular interactions between the solid wall and inner liquid. The apparent viscosity, which takes into consideration the molecular interactions, is introduced in the present study and the Navier-Stokes equations are solved. Water is adopted in the calculation. For the hydrophilic material wall, the water is more like to adhere to the wall. The velocity near the wall is smaller than that of conventional theory, while the centerline velocity and pressure gradients are much larger. Such a phenomenon becomes much more obvious with the decrease in tube diameter.
出处 《Chinese Physics Letters》 SCIE CAS CSCD 2009年第5期191-194,共4页 中国物理快报(英文版)
基金 Supported by the National Natural Science Foundation of China under Grant No 10632070.
关键词 gamma-ray bursts GAMMA-RAYS RELATIVITY gamma-ray bursts, gamma-rays, relativity
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参考文献17

  • 1Cao B Y, Chen M and Guo Z Y 2004 Chin. Phys. Lett. 21 1777.
  • 2HaoP F, YaoC H, He F and Zhu K Q 2006 Chin. Phys. Lett. 23 2815.
  • 3Jiang R J, Song F Q and Li H M 2006 Chin. Phys. Lett. 23 3305.
  • 4Gad-el-Hak M 1999 J. Fluids Engin. T. ASME 121 5.
  • 5Wang R J, Lin J Z and Li Z H 2005 Biomedical Microdevices 7 131.
  • 6Wang R J, Lin J Z and Li H J 2007 Chaos Solitons Fractals 33 1362.
  • 7Lin J Z, Zhang K and Li H J 2006 Chin. Phys. 15 2688.
  • 8Pfahler J, Harley J, Bau H and Zemel J 1991 ASME DSC 32 49.
  • 9Qu w L, Mala G M and Li D Q 2000 Int. J. Heat Mass Transfer 43 353.
  • 10Mala G M and Li D Q 1999 Int. J. Heat Fluid Flow 20 142.

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