Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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DEVELOPMENT OF A NUMERICAL TECHNIQUE FOR CAPILLARY SPREADING OF A DROPLET CONTAINING PARTICLES ON THE SOLID SUBSTRATE

미세입자분산 액적의 고체면에서 모세퍼짐 현상에 관한 직접수치해석 기법개발

  • 황욱렬 (경상대학교 기계항공공학부) ;
  • 정현준 (경상대학교 기계항공공학부 대학원) ;
  • 김시조 (안동대학교 기계공학부) ;
  • 김종엽 (고려대학교 화공생명공학과)
  • Published : 2007.12.31
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Abstract

We present a direct numerical simulation technique and some preliminary results of the capillary spreading of a droplet containing particles on the solid substrate. We used the level-set method with the continuous surface stress for description of droplet spreading with interfacial tension and employed the discontinuous Galerkin method for the stabilization of the interface advection equation. The distributed Lagrangian-multipliers method has been combined for the implicit treatment of rigid particles. We investigated the droplet spreading by the capillary force and discussed effects of the presence of particles on the spreading behavior. It has been observed that a particulate drop spreads less than the pure liquid drop. The amount of spread of a particulate drop has been found smaller than that of the liquid with effectively the same viscosity as the particulate drop.

Keywords

References

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