KSME International Journal

, Volume 11, Issue 4, pp 476–483 | Cite as

Turbulent flow and heat transfer characteristics of a two-dimensional oblique plate impinging jet

  • Soon Hyun Yoon
  • Moon Kyung Kim
  • Dae Hee Lee


Turbulent flow and heat transfer characteristics of a two-dimensional oblique plate impinging jet (OPIJ) were experimentally investigated. The local heat transfer coefficients were measured using thermochromic liquid crystals. The jet mean velocity and turbulent intensity profiles were also measured along the plate. The jet Reynolds number (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 (α) from 60 to 90 degree. It has been found that the stagnation point shifted toward the minor flow region as the oblique angle decreased and the position of the stagnation point nearly coincided with that of the maximum turbulent intensity. It has also been observed that the local Nusselt numbers in the minor flow region were larger than those in the major flow region for the same distance along the plate mainly due to the higher levels in turbulent intensity caused by more active mixing of the jet flow.

Key Words

Oblique Plate Impinging Jet Turbulent Flow Heat Transfer Liquid Crystal 


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Copyright information

© The Korean Society of Mechanical Engineers (KSME) 1997

Authors and Affiliations

  • Soon Hyun Yoon
    • 1
  • Moon Kyung Kim
    • 2
  • Dae Hee Lee
    • 3
  1. 1.School of Mechanical Engineering, Research Institute of Mechanical TechnologyPusan National UniversityKorea
  2. 2.Department of Mechanical DesignChang Won Junior CollegeKorea
  3. 3.Department of Mechanical EngineeringInje UniversityKorea

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