점탄성 이상유동에서 계면장력과 액적크기가 액적변형에 미치는 효과

다국어 초록 (Multilingual Abstract)

The finite-element method was developed to analyze the deformation of a drop for the viscoelastic twophase<br/>
flow. In the present study a viscoelastic drop suspended in a viscoelastic medium was considered, for<br/>
which the Oldroyd B model was employed. The penalty function method was used to eliminate the pressure<br/>
variables from the system equations. The shape of a highly deformed drop was described by using<br/>
unstructured mesh generator and auto-remeshing techniques. The deformation of a drop was discussed for<br/>
various sizes( R =0.2~0.4) and interfacial tensions( ξ=0.0~0.01). As a result, the deformation of a drop has<br/>
tendency to be thicker and rounded at the front of a drop for the same drop size. This recoil Phenomena is<br/>
increased with increasing the interfacial tension. As the drop size increases the deformation of a drop also<br/>
increases, especially at the rear region of a drop, which looks like a dumbbell.

목차 (Table of Contents)

• Abstract
  
• 1. 서론
  
• 2. 계산 조건 및 지배방정식
  
• 3. 결과 및 고찰
  
• 4. 결론
  
• 후기
  
• 참고문헌