NUMERICAL INVESTIGATION OF HEAT TRANSFER IN A TURBULENT FLOW IN CHANNELS WITH GAP

Authors

  • S. I. S. Souza Universidade Federal do Rio Grande do Norte
  • H. A. Martins Universidade Federal do Rio Grande do Norte
  • J. N. V. Goulart Universidade de Brasília

DOI:

https://doi.org/10.5380/reterm.v13i2.62104

Keywords:

turbulent flow, compound channels, URANS, channel with slot, large scale structures

Abstract

Turbulent flow in channels with gap is still a challenge for engineering. The velocity fluctuations and the appearance of coherent structures have been playing a major role in forced convective heat transfer process between the warm tube walls and the cooling fluid. In this paper numerical simulation of non-isothermal turbulent flow in a rectangular channel containing only one tube was performed. Unsteady Reynolds Navier-Stokes along with the energy equation were applied to model the problem. In order to overcome the closure problem the turbulence was modeled applying SAS model. The simulated geometry consists of a heated cylindrical tube, placed 10 mm from the bottom wall of the rectangular duct. The fluid flows externally to the heated tube along the mainstream direction. The channel’s length was based on the tube diameter, yielding L/D equal 80.

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Published

2014-12-31

How to Cite

Souza, S. I. S., Martins, H. A., & Goulart, J. N. V. (2014). NUMERICAL INVESTIGATION OF HEAT TRANSFER IN A TURBULENT FLOW IN CHANNELS WITH GAP. Revista De Engenharia Térmica, 13(2), 96–103. https://doi.org/10.5380/reterm.v13i2.62104

Issue

Vol. 13 No. 2 (2014)

Section

Ciência/Science

License

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