유체기계공업학회:학술대회논문집

Korean Society for Fluid machinery (한국유체기계학회)
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Calculations of Pressure Difference in Orifice Flowmeter using CFD

CFD를 이용한 오리피스 유량계의 차압계산

  • 김홍민 (인하대학교 기계공학과 대학원) ;
  • 김광용 (인하대학교 기계공학부) ;
  • 허재영 (한국가스공사 연구개발원 유체개량연구실) ;
  • 하영철 (한국가스공사 연구개발원 유체개량연구실)
  • Published : 2001.11.01
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Abstract

In this study, commercial CFD code, i.e, CFX-4.3 is used to analyze the flow field and to calculate pressure differences in an orifice flowmeter. Four numerical schemes and five turbulence models are tested. Hybrid scheme and Reynolds stress model show the best performance. Chosen scheme and turbulence model are applied to predict pressure differences through the orifice for the diameter ratios, 0.3, 0.5, and 0.7. And, the results are compared with the experimental data. The results show that the calculation error is inversely proportional to the diameter ratio, and is proportional to the mass flow rate.

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