Browse > Article

A Numerical Study on Cooling Characteristics by Impinging Jet at a Square Heating Element with Duct  

Yoon Jeong-Ho (동아대학교 기계공학과)
Kim Si-Boem (동아대학교 기계공학과)
Kim Dong-Kyun (동명대학 컴퓨터응용기계과)
Lee Chi-Woo (진주산업대학교 기계공학과)
Kim Ji-Hoon (동아대학교 기계공학과)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.29, no.1, 2005 , pp. 42-48 More about this Journal
Abstract
Because Impinging jet has excellent heat & mass transfer characteristics. it has many advantages of cooling. drying. etc and widely applied at industrial fields. Therefore, there have been many experimental investigations and theoretical studies about Impinging jet. The present study is about a cooling characteristic by Impinging jet for a Square Plate on Duct and investigated this characteristic through three-dimensions numerical analysis, using FLUENT. As the result of this study, heat transfer effect is the most appropriate condition when the ratio of distance is 6 between nozzle exit diameter and heat source. diameter of duct is 90mm and height of duct is 60mm. In addition. under the influence of injected jet. stagnant fluid flow into free jet field and this affected the whole flow field. So the shape of duct is a important factor and the researcher confirmed the need of investigation about duct.
Keywords
Impinging jet; Turbulent kinetic energy; Duct;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Florschuetz, et al., 'Evaluation of Internal Heat Transfer Coefficients for Impingement Cooled Turbine Airfoils', AIAA Paper No.68-564, AIAA 4th Propulsion Joint Specialist Conference, Cleveland, Ohio, June 10-14, 1984
2 Downs. S. J. and James. E.H., 'Jet Impingement Heat Transfer-A literature Survey,' ASME Paper No.87-H-35, ASME. New York. 1987
3 Gardon, R. and Akfirat, J. C., 'The Role of Turbulence in determining the heat-transfer charactristics of impingging jet', Int. J. Heat Mass Transfer. Vol. 8, pp. 1261-1272, 1963   DOI   ScienceOn
4 김동균, '전열제오를 위한 충동제트의 거리비에 따른 열전달 특성에 관한 연구' 한국박용기관학회지. 25(6) 1237-1243, 2000
5 C. Gau. W. Y. Sheu and C. H. Shem 'Impingement Cooling Flow and Heat Transfer Under Acoustic Excitation.' ASME J. Heat Transfer, Vol. 119. pp.810-817, 1997   DOI   ScienceOn