• 제목/요약/키워드: 편심 환형관

검색결과 2건 처리시간 0.016초

편심 환형관내 유동에 대한 수치 해석적 연구 (A numerical study on the flow in an eccentric annulus)

  • 우남섭;서병택;배경수;황영규
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2004년도 춘계학술대회
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    • pp.1863-1868
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    • 2004
  • The present study concerns a computational study of fully developed laminar flow of a Newtonian fluid through an eccentric annulus with a combined bulk axial flow and inner cylinder rotation. This study considers the identical flow geometry as in the calculation of Escudier et $al.^{(3)}$ An unexpected feature of the calculations for eccentricity ${\varepsilon}$)0.7 is the appearance of a second peak in the axial velocity, located in the narrowing gap. The distribution of the axial component of the surface shear stress has a maximum in the narrowing gap and a minimum in the widening gap.

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뉴튼 및 비뉴튼 유체의 헬리컬 유동에 관한 연구 (Helical flow of Newtonian and non-Newtonian fluid in an nnulus)

  • 우남섭;서병택;배경수;황영규
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2004년도 추계학술대회
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    • pp.1634-1639
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    • 2004
  • The present study concerns a experimental study of fully developed laminar flow of a Newtonian and non-Newtonian fluid through a concentric annulus with a combined bulk axial flow and inner cylinder rotation for the various radius ratio. This study shows the fundamental difference between Newtonian and non-Newtonian fluid flow in an annulus for various radius ratio.

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