Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Study on a Shape Deformation of Water Meniscus for the Rectangular and Circular Tips Moving Horizontally

사각 및 원형 팁의 횡운동에 의한 물 메니스커스 형상변화에 관한 연구

  • Kim, Sang-Sun (School of Mechanical Engineering, Pusan National University) ;
  • Son, Sung-Wan (School of Mechanical Engineering, Pusan National University) ;
  • Ha, Man-Yeong (School of Mechanical Engineering, Pusan National University) ;
  • Yoon, Hyun-Sik (Advanced Ship Engineering Research Center, Pusan National University) ;
  • Kim, Hyung-Rak (School of Mechanical Engineering, Pusan National University)
  • 김상선 (부산대학교 기계공학부) ;
  • 손성완 (부산대학교 기계공학부) ;
  • 하만영 (부산대학교 기계공학부) ;
  • 윤현식 (부산대학교 첨단조선공학 연구센터) ;
  • 김형락 (부산대학교 기계공학부)
  • Received : 2011.10.05
  • Published : 2011.12.10
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Abstract

A two-dimensional immiscible water meniscus deformation phenomena on a moving tip in a channel has been investigated by using lattice Boltzmann method involving two-phase model. We studied the behavior of a water meniscus between the tip and a solid surface. The contact angles of the tip and a solid surface considered are in the range from $10^{\circ}$ to $170^{\circ}$. The velocity of the tip used in the study are 0.01, 0.001, and 0.0001. The shapes of tip considered are rectangular and circular. The behavior of water confined between the tip and a solid surface depends on the contact angles of the tip and a solid surface, and the tip velocity. When the tip is moving, we can observe the various behaviors of shear deformation of a water meniscus. As time goes on, the behavior of a water meniscus can be classified into three different patterns which are separated from the tip or adhered to the tip or sticked to a solid surface according to the contact angles and the tip velocity.

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References

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