This paper presents the results of an investigation on prediction of local and mean thermal-hydraulic characteristics in rib-roughened ducts of square cross section. the Navier–Stokes and energy equations together with two low-Re k–ε turbulence models are solved numerically. The Reynolds turbulent stress tensor is calculated by two methods, namely, an eddy viscosity model (EVM) and an explicit algebraic stress model (EASM). The pressure–velocity coupling is handled by the SIMPLEC algorithm and calculations were carried out on a collocated grid. The convection–diffusion terms were calculated using the hybrid scheme (the changes in the results obtained by the other schemes, e.g., QUICK and Van Leer, were not significant). The considered ribbed duct configuration is identical to that in an experimental study and comparisons between the predictions and experimental results are provided. A discussion of the capabilities of the two methods (EVM and EASM) is presented.
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July 2001
Technical Papers
On Prediction of Thermal-Hydraulic Characteristics of Square-Sectioned Ribbed Cooling Ducts
Arash Saidi,
Arash Saidi
Division of Heat Transfer, Lund Institute of Technology, 221 00 Lund, Sweden
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Bengt Sunde´n
e-mail: bengt.sunden@vok.lth.se
Bengt Sunde´n
Division of Heat Transfer, Lund Institute of Technology, 221 00 Lund, Sweden
Search for other works by this author on:
Arash Saidi
Division of Heat Transfer, Lund Institute of Technology, 221 00 Lund, Sweden
Bengt Sunde´n
Division of Heat Transfer, Lund Institute of Technology, 221 00 Lund, Sweden
e-mail: bengt.sunden@vok.lth.se
Contributed by the International Gas Turbine Institute for publication in the ASME JOURNAL OF TURBOMACHINERY. Manuscript received at ASME Headquarters March 2001. Associate Editor: R. Bunker.
J. Turbomach. Jul 2001, 123(3): 614-620 (7 pages)
Published Online: March 1, 2001
Article history
Received:
March 1, 2001
Citation
Saidi , A., and Sunde´n, B. (March 1, 2001). "On Prediction of Thermal-Hydraulic Characteristics of Square-Sectioned Ribbed Cooling Ducts ." ASME. J. Turbomach. July 2001; 123(3): 614–620. https://doi.org/10.1115/1.1371779
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