Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
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Study on the Fluid-Surface Characteristics by Using Flow Visualization and Numerical Simulation of Stokes Flow in a Cavity

3차원 캐버티 표면의 스톡스 유동 가시화 및 수치해석을 통한 표면 특성 연구

  • 허효원 (동아대학교 기계공학과 대학원) ;
  • 이헌덕 (동아대학교 기계공학과 대학원) ;
  • 정원혁 (동아대학교 기계공학과 대학원) ;
  • 조동식 (동아대학교 기계공학과 학부) ;
  • 서용권 (동아대학교 기계공학과)
  • Received : 2011.09.15
  • Accepted : 2011.09.22
  • Published : 2011.09.30
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Abstract

In this study, we propose a method for characterizing fluid-mechanical properties of a fluid surface, such as surface dilatational and shear viscosity, by matching the flow visualization and the numerical simulation for a Stokes flow in a three-dimensional cavity. The surface flow is driven by shear stress exerted on the free surface by an external gas flow. The external gas flow is simulated by using a commercial code, while the Stokes flow is calculated by an in-house code. We have found that the surface flow is very sensitive to the surface tension and other properties. The qualitative feature of the surface flow can be reproduced by the parameter tuning.

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References

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