Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Molecular Dynamics Simulation for the Moving Water Droplet on Atomistically Smooth Solid Surface

원자적으로 균일한 평판 위에서 움직이는 물 액적에 대한 분자동역학 시뮬레이션

  • 홍승도 (부산대학교 기계공학부 대학원) ;
  • 하만영 (부산대학교 기계공학부)
  • Published : 2009.08.01
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Abstract

The variation in the shape of water droplet moving on atomistically smooth solid surface in the presence of a constant body force is simulated using molecular dynamics simulation. We investigated how the advancing and receding contact angle of the moving water droplet changes on a solid surface having various characteristic energies. From the MD simulation results, we obtained the density profile defined as the number of water molecules at a given position. Then, assuming the water droplet periphery to be a circle, we calculated the contact angles by using a nonlinear fitting of the half-density contour line. The present simulation clearly shows the different profile of the advancing and receding contact angle for these three different interaction potential between the water droplet and the solid surface.

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References

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