Journal of the Korean Society of Mechanical Technology (한국기계기술학회지)

Korean Society of Mechanical Technology (한국기계기술학회)
권호 표지

Experimental Study of Flow Near a Flat Plate Around a Row of Inclined Jets

평판 상에서 경사 분류열 부근의 유동에 대한 실험적 연구

  • 김은영 (인천대학교 기계시스템공학부)
  • Received : 2011.05.07
  • Accepted : 2011.06.17
  • Published : 2011.06.30
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Abstract

An experimental method, based upon wall visualizations, has been developed to observe air flow near a plane wall around a row of five $45^{\circ}$ inclined jets discharging into a cross stream. This study concerns the variation of injection rate R which is one of the most important parameters governing this flow type. The Results are concentrated on the spatial evolution of two lobes with R. These structures are fastened to jets downstream edge and exist for very low injection rate values which are an indication of jets takeoff at the immediate downstream of injection orifices. The velocity rate of 0.42 marks a change in the structure alimentation system.

Keywords

Acknowledgement

Supported by : 인천대학교

References

  1. Viskanta, R., "Heat Transfer to Impinging Isothermal Gas and Flame Jets", Exp. Thermal and Fluid Science, Vol.6, pp.113-134, (1993)
  2. Katoka, K., Suguro, M., The Effect of Surface Renewal due to Large Scale Eddies on Jet Impingement Heat Transfer", Int.J.of Heat and Mass Transfer, Vol.30, No.3, pp.559-567,(1987) https://doi.org/10.1016/0017-9310(87)90270-5
  3. Haneda, Y., Kurasawa,H., "Flow-Field and Heat Transfer of Two-Dimensional Impinging Jet Disturbed by a Circular Cylinder", Trans. of JSME, Ser. B, Vol.69, No.683, pp.1704-1711, (2003) https://doi.org/10.1299/kikaib.69.1704
  4. Ichimiya,K. "Three-Dimensional Heat Transfer of a Confined Circular Impinging Jet with Buoyancy Effects", ASME. J. of Heat Transfer, Vol.125, pp.250-256, (2003) https://doi.org/10.1115/1.1527901
  5. Kito, M., Shakouchi,T., "Flow and Heat Transfer Characteristics of Orifice Impinging Jet", Trans. of JSME, Ser. B, Vol.724, No.739, pp. 670-677, (2008)
  6. Sugiyama, Y., "Experiments on the Flow In and Around Jets directed normal to a Cross Flow", JSME, Vol. 22, No.174, pp.1736-1745, (1977)
  7. Ammari, H.D., Hay, N., "Effect of Acceleration on the Heat Transfer Coefficient on a Film Cooled Surface", J. of Turbomachinery Transaction of A.S.M.E., Vol.113, pp. 464-471, (1991) https://doi.org/10.1115/1.2927897
  8. Toshihiko,S., Flow and Heat Transfer Characteristics of Impinging Jet from Notched Orifice Nozzle", JSME, B, Vol.76, No.772, pp. 2235-2241, (2010) https://doi.org/10.1299/kikaib.76.772_2235
  9. Bergeles, G., Gosman, A.D., "Near Field Character of a Jet Discharged through a Wall at $30^{\circ}$ to a Mainstream", A.I.A.A.Journal, Vol.15, No.4, pp. 499-504, (1977)