Mixed convection flow and heat transfer in a heated vertical convergent channel

C. Gau, T. M. Huang, W. Aung

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

Experimental studies of the mixed convection flow and heat transfer in a vertical convergent channel have been carried out. One of the side walls which maintains vertical is heated uniformly, and the opposite wall which has a convergence angle of 3° is well insulated, Flow structure inside the channel is visualized with a heated smoke wire. For both assisted and opposed convection, flow reversal occurs only in the upstream of the channel but not in the downstream where rapid acceleration of flow occurs and the transport process is dominated by forced convection. Temperature fluctuations at different locations are measured and used to indicate oscillations and fluctuations of the reversed flow. The effect of buoyancy parameter on the reversed flow structure and the Nusselt number will be presented and discussed. The Nusselt number results are correlated in terms of relevant nondimensional parameters for both pure forced and mixed convection, respectively. For the purpose of comparison and correlation, the Nusselt numbers for parallel-plate channel are also measured and presented.

Original languageEnglish
Publication statusPublished - 1994 Jan 1
EventAIAA/ASME 6th Joint Thermophysics and Heat Transfer Conference, 1994 - Colorado Springs, United States
Duration: 1994 Jun 201994 Jun 23

Other

OtherAIAA/ASME 6th Joint Thermophysics and Heat Transfer Conference, 1994
CountryUnited States
CityColorado Springs
Period94-06-2094-06-23

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Nuclear and High Energy Physics

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  • Cite this

    Gau, C., Huang, T. M., & Aung, W. (1994). Mixed convection flow and heat transfer in a heated vertical convergent channel. Paper presented at AIAA/ASME 6th Joint Thermophysics and Heat Transfer Conference, 1994, Colorado Springs, United States.