Developing mixed convection with aiding buoyancy in vertical tubes: a numerical investigaion of different flow regimes

International Journal of Thermal Sciences

Volumn 40, Issue 9, 2001, Pages 816-824

  Zghal, Maher ^a,c   Galanis, Nicolas ^a   Nguyen, Cong Tam ^b  

^a UNIVERSITÉ DE SHERBROOKE   (Canada)

^b UNIVERSITÉ DE MONCTON   (Canada)

^c EMCO Ltd   (Canada)

Author keywords

Convection mixte; Diffusion axiale; Effects of heating length; Elliptic model; Flow regimes; Flow reversal; Mixed convection; Mod le elliptique; R gimes d' coulement; Renversement de l' coulement; Upstream diffusion

Indexed keywords

EID: 0035486425     PISSN: 12900729     EISSN: None     Source Type: Journal    
DOI: 10.1016/S1290-0729(01)01268-6     Document Type: Article

References (17)

1. Hallman T.M. Combined forced and free laminar heat transfer in vertical tubes with uniform heat generation. ASME Transactions. 78:1956;1831-1841.
2. Choudhury D., Patankar S.V. Combined forced and free laminar convection in the entrance region of an inclined isothermal tube. ASME J. Heat Transfer. 110:1988;901-909.
3. Wang M., Tsuji T., Nagano Y. Mixed convection with flow reversal in the thermal entrance region of horizontal and vertical pipes. Internat. J. Heat Mass Transfer. 37:1994;2305-2319.
4. Ouzzane M., Galanis N. Effet de la conduction pariétale et de la répartition du flux thermique sur la convection mixte près de l'entrée d'une conduite inclinée. Internat. J. Therm. Sci. 38:1999;622-633.
5. th Internat. Heat Transfer Conf., Brighton UK, Vol. 5. 1994;501-506.
6. Nesreddine H., Galanis N., Nguyen C.T. Effects of axial diffusion on laminar heat transfer with low Péclet numbers in the entrance region of thin vertical tubes. Numer. Heat Transfer. 33:1998;247-266.
7. Shah R.K., London A.L. Laminar Flow Forced Convection in Ducts, a Source Book for Compact Heat Exchanger Analytical Data. 1978;Academic Press, New York.
8. Pagliarini G. Steady laminar heat transfer in the entry region of circular tubes with axial diffusion of heat and momentum. Internat. J. Heat Mass Transfer. 32:1989;1037-1052.
9. Yao L.S. Is a fully developed and non-isothermal flow possible in a vertical pipe? Internat. J. Heat Mass Transfer. 30:1987;707-716.
10. Bernier M., Baliga B.R. Visualization of upward mixed convection flows in vertical pipes using a thin semitransparent gold-film heater and dye injection. Internat. J. Heat Fluid Flow. 13:1992;241-249.
11. Patankar S.V., Spalding D.B. A calculation procedure for heat, mass and momentum transfer in three-dimensional parabolic flows. Internat. J. Heat Mass Transfer. 15:1972;1787-1806.
12. Van Doormal J.P., Raithby G.D. Enhancement of the SIMPLE method for predicting incompressible fluid flows. Numer. Heat Transfer. 7:1984;147-163.
13. Zghal M. Effets de la convection naturelle sur le renversement de l'écoulement ascendant dans un conduit vertical. Mémoire M. Sci. A. Univ. de Sherbrooke, Québec, Canada. 1999.
14. Kakac S., Yener Y. Convective Heat Transfer. 1995;CRC Press, Boca Raton.
15. Kays W.M. Numerical solutions for laminar flow heat transfer in circular tubes. ASME Transactions. 77:1955;1265-1274.
16. Zeldin B., Schmidt F.W. Developing flow with combined forced-free convection in an isothermal vertical tube. ASME J. Heat Transfer. 94:1972;211-223.
17. Orfi J., Galanis N., Nguyen C.T. Laminar mixed convection in the entrance region of inclined pipes with high uniform heat fluxes. ASHRAE Transactions. 104:1998;417-428.