Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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A Numerical Analysis Study on Two-phase Flow for the Development of High-efficiency Toilet

고절수형 위생도기 개발을 위한 이상유동 수치해석 연구

  • An, Il-Yong (Dept. of Mechanical Engineering, Graduate School of Kongju National University) ;
  • Lee, Young Lim (Dept. of Mechanical and Automotive Engineering, Kongju National University)
  • 안일용 (공주대학교 대학원 기계공학과) ;
  • 이영림 (공주대학교 기계자동차공학부)
  • Received : 2012.09.10
  • Accepted : 2012.12.06
  • Published : 2012.12.31
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Abstract

In the era of water scarcity, saving toilet water is one of the most effective ways to save water. In this study, two-phase flow for the development of highly-efficient toilet has been analysed with VOF(Volume Of Fluid) method. Since the whole model requires extensive computing time, part of the whole model has also been adopted to reduce the analysis time. Four different rim models were considered for flow distribution analysis and sizes of rim holes were found to become more important rather than locations or numbers of rim holes in achieving flow distribution effectively. In addition, velocity and pressure of two-phase flow due to siphon phenomenon have been studied through the analysis of whole model. Therefore, this study provides a variety of fundamental data for the development of highly-efficient toilet.

물 부족 시대에 양변기 절수는 물을 절약하는데 가장 효과적인 방법 중 하나이다. 본 연구에서는 고절수형 양변기 개발을 위한 이상유동 해석을 위해 VOF 기법을 이용하였다. VOF를 이용한 전체 모델의 해석은 많은 시간이 요구되므로 전체모델의 일부분만 고려하는 부분모델도 해석시간 단축을 위해 사용하였다. 유량배분 해석을 위해 4개의 서로 다른 림 모델을 고려하였는데 림 홀의 위치나 개수보다는 림 홀의 크기가 유량배분을 효과적으로 달성하기 위한 인자임이 본 연구를 통해 밝혀졌다. 또한, 전체모델 해석을 통해 사이펀 현상에 따른 이상유동의 속도 및 압력도 분석하였다. 따라서 본 연구는 고절수형 양변기 모델 개발을 위한 다양한 기초 데이터를 제공한다.

Keywords

References

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