설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)

  • 제14권3호
  • /
  • Pages.206-213
  • /
  • 2002
  • /
  • 1229-6422(pISSN)
  • /
  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

제한공간에 설치된 제트팬의 기류특성 예측

Prediction of the Flow Characteristics of Jet Fan in a Confined Space

  • 이재헌 (한양대학교 공과대학 기계공학부) ;
  • 환유준 (한양대학교 공과대학 기계공학부) ;
  • 김경환 (한양대학교 대학원 기계공학과) ;
  • 임윤철 ((주)명진에어테크) ;
  • 오명도 (서울시립대학교 정밀기계공학과) ;
  • 김종필 (홍익대학교 기계공학과)
  • 발행 : 2002.03.01
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초록

In this paper, the flow characteristics of an axial fan spraying isothermal compact jet in a confined space were investigated by the experimental methods, the numerical method, and the free jet theory According to the results, the numerical result and the experimental result are agreed well qualitatively and different quantitatively within $\pm1.0%$ for the centerline velocity, the entrainment ratio, and the maximum throw. However, the free jet theory can reasonably predict the centerline velocity except the entrainment ratio and the maximum throw. In other words, the entrainment ratio and the maximum throw by 1.he free jet theory are hard to estimate the characteristics of jet because of restriction of c confined space.

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참고문헌

  1. ASHRAE Handbook Space air diffusion American Society of Heating, Refrigerating and Air-Conditioning Engineers
  2. International Journal of Heat and Fluid Flow v.17 no.4 Effect of wall inclination on the mean flow and turbulence characteristics in a two-dimensional wall jet Lai, J.C.S.;Lu, D.
  3. Int. Comm, Heat Mass Transfer v.25 no.3 Investigation on the mass entrainment of a acoustically controlled elliptic jet Lin, Y.T.;Shieh, M.S.
  4. Building and Environment 35 A systematic approach to describe the air terminal device in CFD simulation for room air distribution analysis Huo, T.;Haghighat, F.;Zhang, J.S.;Shaw, Y.C.
  5. Korean Journal of Air-Conditioning Refrigeration Engineering v.6 no.2 An experimental study on the flow characteristics of a swirl-jet diffuser Lee, C. S.:Jurng, J. S.;Jeong, S. Y.;Hong, K. H.
  6. ASHVE Research Report no.1479 Air velocities in ventilation jets Tuve, G.L.;Ohio, C.
  7. Computational Fluid Dynamics for Engineers(1st ed.) Hoffmann, K. A.;Chiang, S. T.