Flow structure in circular tubes with segmental baffles

Al-Atabi, M., Chin, S.B. and Luo, X.Y. (2005) Flow structure in circular tubes with segmental baffles. Journal of Flow Visualization and Image Processing, 12(3), pp. 301-311. (doi:10.1615/JFlowVisImageProc.v12.i3.60)

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Abstract

The flow structure in a circular uniform-diameter tube with segmental baffles is experimentally investigated over the range of Reynolds numbers from 50 to 5000, using flow visualization and pressure drop measurement. Three baffle clearance ratios (c/D = 0.3, 0.5, and 0.7) are studied. The results revealed that the presence of the baffles triggers transition to turbulence at a much lower Reynolds number compared to that for the straight circular tube. The flow in the baffle section of tube with c/D = 0.3 appears turbulent at the Reynolds number of 250. Friction factor of the tubes with baffles decreases with increasing Reynolds number but it is always larger than that for a laminar flow in a tube without baffles

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Luo, Professor Xiaoyu
Authors: Al-Atabi, M., Chin, S.B., and Luo, X.Y.
Subjects:Q Science > QA Mathematics
Q Science > QC Physics
College/School:College of Science and Engineering > School of Mathematics and Statistics > Mathematics
Journal Name:Journal of Flow Visualization and Image Processing
ISSN:1065-3090
ISSN (Online):1940-4336

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