한국전산유체공학회지 (Journal of computational fluids engineering)

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
권호 표지

미세입자분산 액적의 고체면에서 충돌과 퍼짐현상에 관한 직접수치해석 기법개발

DEVELOPMENT OF A NUMERICAL TECHNIQUE FOR IMPACT AND SPREADING OF A DROPLET CONTAINING PARTICLES ON THE SOLID SUBSTRATE

  • 정현준 (경상대학교 기계항공공학부 대학원) ;
  • 황욱렬 (경상대학교 기계항공공학부, 항공기부품기술연구소) ;
  • 김종엽 (고려대학교 화공생명공학과)
  • 발행 : 2008.09.30
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초록

We present a numerical simulation technique and some preliminary results of the impact and spreading of a droplet containing particles on the solid substrate in 2D. We used the 2nd-order Adams-Bashforth / Crank-Nicholson method to solve the Navier-Stokes equation and employed the level-set method with the continuous surface stress for description of droplet spreading with interfacial tension. The impact velocity has been generated by the instantaneous gravity. The distributed Lagrangian-multipliers method has been combined for the implicit treatment of rigid particles and the discontinuous Galerkin method has been used for the stabilization of the interface advection equation. We investigated the droplet spreading by the inertial force and discussed effects of the presence of particles on the spreading behavior using an example problem. We observed reduced oscillation and spread for the particulate droplet.

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참고문헌

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