• Title/Summary/Keyword: Two-dimensional oblique plate impinging jet

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A Study on the Flow Characteristics of a Two - Dimensional Oblique Plate Impinging Jet (경사진 평판에서 2차원 충돌 제트의 유동 특성에 관한 연구)

  • 윤순현;김경문;김대성
    • Journal of Advanced Marine Engineering and Technology
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    • v.21 no.1
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    • pp.37-42
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    • 1997
  • Turbulent flow characteristics of a two - dimensional oblique plate impinging jet(OPIJ) were experimentally investigated. The jet mean velocity and turbulent intensity profIles were also measured along the plate. The jet Reynolds numbers(Re, based on the nozzle width)ranged from 10, 000 to 35, 000, the nozzle - to - plate distance(H/B) from 2 to 16, and the oblique angle (a) from 60 to 90 degree. It has been found that the stagnation point shifted toward the minor flow region as the oblique angle decreases and the position of the stagnation point nearly coin¬cided with that of the maximum turbulent intensity.

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Experimental investigation on heat transfer with a two-dimensional oblique impinging jet (2차원 경사 충돌제트의 열전달에 관한 실험적 연구)

  • Yoon, S.H.;Kim, M.K.;Lee, D.H.
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.9 no.4
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    • pp.427-434
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    • 1997
  • Heat transfer characteristics of a two-dimensional oblique impinging jet were experimentally investigated. The local heat transfer coefficients were measured by a thermochromic liquid crystal. The jet Reynolds number studied was varied from 10000 to 35000, the nozzle-to-plate distance(H/B) from 2 to 16, and the oblique angle($\alpha$) from $60^{\circ}$ to $90^{\circ}$. It was observed that the local Nusselt numbers in the minor flow region were larger than those in the major flow region at the same distance along the plate due to the higher levels in the turbulent intensity caused by more active mixing of the jet flow.

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