The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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An Experimental Study on the Discharge Coefficients of Small Sonic Nozzles

소형 소닉 노즐의 유출계수에 관한 실험적 연구

  • 차지선 (목포대학교 기계공학과) ;
  • 박경암 (한국표준과학연구원 유체유동그룹) ;
  • 최용문 (한국표준과학연구원 유체유동그룹) ;
  • 최해만 (한국표준과학연구원 유체유동그룹) ;
  • 윤복현 (목포대학교 기계공학과)
  • Published : 2000.06.01
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Abstract

Small sonic nozzles (throat diameter $0.28{\~}4.48mm$) were tested in the gas flow standard system. This standard system is composed of two bell provers and 5 column piston provers, compressor, filters, and dehumidifier. The discharge coefficients of small some nozzles are obtained and correlated as a function of throat Reynolds numbers with $0.316\%$ uncertainty at a confidence level $95\%$. The tested high Reynolds number was the lower limit of ISO 9300 specifications. The data are useful as data base for revision of ISO 9300.

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