Journal of Mechanical Science and Technology

  • 제16권5호
  • /
  • Pages.676-682
  • /
  • 2002
  • /
  • 1738-494X(pISSN)
  • /
  • 1976-3824(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
권호 표지

Convective Heat Transfer in Ventilated Space wit=h Various Partitions

  • Bae, Kangyoul (Graduate School, Gyeongsang National University) ;
  • Chung, Hanshik (School of Transport Vehicle Engineering, Gyeongsang National University) ;
  • Jeong, Hyomin (School of Transport Vehicle Engineering, The Institute of Marine Industry,)
  • 발행 : 2002.05.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The laminar convective heat transfer in ventilated space with various horizontal partitions was studied numerically and experimentally For the numerical study, the governing equations were solved by using a finite volume method for various numbers Re, Gr, Pr and partition numbers. The experimental study was conducted by using a holographic interferometer. The isotherms and velocity vectors have been presented for various parameters. As the number and length of partition increased, convective heat transfer decreased. Based on the numerical data, correlation equations were obtained for the mean Nusselt number in term of Gr/Re$^2$. In the region of Gr/Re$^2$$\leq$ 1, the mean Nusselt number was small, but in the region of Gr/Re$^2$> 1, the mean Nusselt number was constant.

키워드

참고문헌

  1. Cheesewright, R., King, K. J. and Ziai, S., 1986, 'Experimental data of the Validation of Computer Codes for the Prediction of Two Dimensional Buoyancy Cavity Flow,' Significant Questions in Buoyancy Affected Enclosure or Cavity Flows, ASME-HTD, pp.75-81
  2. Choi, M. and Cho, K., 2000, 'Influence of an Aspect Ratio of Rectangular Channel on the Cooling Performance of a Multichip Module,' KSME Int. J., Vol. 14, No.3, pp. 350-357 https://doi.org/10.1007/BF03186428
  3. Chung, H., Jeong, H., Lee, C. and Kwon, S., 1998, 'Study on Convection Heat Transfer in a Ventilated Room with Horizontal Partitions,' Proc. of 11th IHTC, Vol. 3, pp.245-250
  4. Davidson, L., 1990, 'Calculation of the Turbulent Buoyancy-Driven Flow in a Rectangular Cavity Using an Efficient Solver and Two Different Low Reynolds Number ${\kappa}-{\varepsilon}$ Turbulence Models,' Numerical Heat Transfer, Vol. 18, Part A, pp. 129-147 https://doi.org/10.1080/10407789008944787
  5. Ede, A. J., 1976, 'Advances in Free Convection,' Advances in Heat Transfer, Academic Press, New York, pp. 1-64
  6. Hanjalic, K., kenjeres, S. and Durst, F., 1994, 'Numerical Study of Natural Convection in Partitionve 2-Cimensional Enclosures at Transition Rayleigh Numbers,' Proc, 10th Int. Heat Transfer Cong., Brighton, Vol. 7, pp. 97-102
  7. Lakhal, E. K., Hasnaoui, M., Bilgen, E. and Vasseur, P., 1994, 'Natural Convection Heat Transfer in Rectangular Enclosures with Perfectly Conduction Fins Attached on the Heated Wall,' Proc. 10th Int. Heat Transfer Cong., Brighton, Vol. 7, pp.97-102
  8. Launder, B. E. and Sharma, B. I., 1974, 'Application of the Energy Dissipation Model of Turbulence to the Calculation of Flow Near a Spinning Disc,' Letters in Heat and Mass Transfer, Vol. 1, No. 2, pp. 131-138 https://doi.org/10.1016/0094-4548(74)90150-7
  9. Lee, J., Kang, T., Lee, K., Cho, M., Shin, J., Kim S., Koo, J. and Lee, J., 200, 'An Experimental Study of Ventilation Effectiveness in Mechanical Ventilation Systems using a Tracer Gas Method,' KSME Int. J., Vol. 14, No. 11, pp. 1286-1295
  10. Oberkampf, W. L. and Crow, L. I., 1976, 'Numerical Study of the Velocity and Temperature Field in a Flow-Through Reservoir,' Journal of Heat Transfer, ASME, pp. 353-359
  11. Papanicolaou, E. and Jaluria, Y., 1995, 'Computation of Turbulent Flow in Mixed Convection in a Cavity with a Localized Heat Source,' Journal of Heat Transfer, ASME, Vol. 117, pp.649-658 https://doi.org/10.1115/1.2822626
  12. Penot, F. and Pavlovic, M., 1986, 'Heat Transfer Analysis of Mixed Convection in a Heated Cavity,' Proc. 8th Int. Heat Transfer Conf., San Francisco, Vol. 3, pp. 1419-1424
  13. Susuki, H., Hasegawa, E. and Matsufuji, H., 1993. 'Motion of Small Particles due to a Pulsatile Flow in a Chamber,' ASME International Journal Series N. Vol. 36, No. 1, pp. 57-65 https://doi.org/10.1299/jsmeb.36.57
  14. Yang, M. and Tao, W. Q., 1995, 'Three-Dimensional Natural Convection in an enclosure with an Internal Isolated Vertical Plate,' Journal of Heat Transfer, ASME, Vol. 117, pp. 619-625 https://doi.org/10.1115/1.2822622
  15. Yucel, A, and Acharya, S., 1991, 'Natural Convection of a Radiating Fluid in a Partially Divided Square Enclosure,' Numerical Heat Transfer, Part A, Vol. 19, pp.417-485