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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Analysis of Airflows in a Room with Panoramic PIV

파노라마-PIV를 이용한 실내기류 해석

  • Hwang Tae-Gyu (Graduate School, Korea Maritime University) ;
  • Doh Deog-Hee (Division of Mechanical and Information Engineering, Korea Maritime University)
  • 황태규 (한국해양대학교 대학원) ;
  • 도덕희 (한국해양대학교 기계정보공학부)
  • Published : 2005.12.01
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Abstract

A panoramic-PIV system has been constructed for the analysis of the airflows in a room. Smoke is used as seeding particles and are visualized by a pulsed laser (Nd-Yag, 120 mJ). Panoramic images have been obtained by an image composition process using the two images obtained by the two cameras $(1k\times1k)$ that are viewing the wide measurement areas. Velocity vector fields have been obtained by the grey-level cross-correlation PIV method. Three room models $(L{\times}W{\times}H[mm^3],\;500\times500\times250,\;350\times350\times175,\;250\times250\times125)$ have been tested. The experimental results have proven that the constructed panoramic-PIV system can be used as a useful tool for analyzing the airflow characteristics in the room models.

Keywords

References

  1. Katou, S., 2003, State of the art analysis of indoor air quality -Prediction of indoor air quality with Computational Fluid Dynamics (CFD) , Proc. of JSAE Symposium, No. 02-03 Air Quality in Car Compartments, pp. 47-55
  2. Hara, T. and Kato, S, 2004, Numerical simulation of thermal plumes in free space using the standard ${\kappa} - {\varepsilon}$ model, Fire Safety Journal, Vol. 39, pp. 105-129 https://doi.org/10.1016/j.firesaf.2003.07.005
  3. Moon, J. H. and Sohn, J. Y., 2001, The determination of a reducing scale in a scalemodel experiment for air flow, Journal of the Architectural Institute of Korea, Vol. 21, No. 1, pp.621-624
  4. Shu, S. W., Hayashi, T. Y., Kato, S. and Murakami, S. 2004, Investigation of flow field in human's respiration area in a calm environment by visualization experiment and numerical analysis, J. Environment Eng., AU, No. 583, pp. 37-42
  5. Adrian, R.J., 1991, Particle-Imaging Techniques for Experimental Fluid Mechanics, Annu. Rev. Fluid Mech., Vol. 23, pp.261-304 https://doi.org/10.1146/annurev.fl.23.010191.001401
  6. Utami, T. and Blackwelder, R., 1991, A cross correlation technique for velocity field extraction from particulate visualization, Exp. in Fluids, Vol. 10, pp. 213-223 https://doi.org/10.1007/BF00190391