Influence of sidewalls on the centerline small-scale turbulence of a turbulent high-aspect-ratio rectangular jet
Article
Article Title | Influence of sidewalls on the centerline small-scale turbulence of a turbulent high-aspect-ratio rectangular jet |
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ERA Journal ID | 3669 |
Article Category | Article |
Authors | Liu, Y. (Author), Zhang, J. (Author), Deo, R. (Author), Mi, J. (Author), Nathan, G. J. (Author) and Zhu, R. (Author) |
Journal Title | Experimental Thermal and Fluid Science |
Journal Citation | 58, pp. 139-144 |
Number of Pages | 6 |
Year | 2014 |
Place of Publication | Philadelphia, PA. United States |
ISSN | 0894-1777 |
1879-2286 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.expthermflusci.2014.06.021 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S0894177714001629 |
Abstract | This study experimentally investigates the influence of placing two parallel sidewalls confining a high-aspect-ratio rectangular jet on the centerline turbulence of various scales, such as the Kolmogorov and Taylor scales. Measurements were made by hot-wire anemometry at a jet-exit Reynolds number of 7000. It is found that the small-scale turbulence of the jet configured with sidewalls appears to statistically differ from that without sidewalls in both the near-field and far-field flow. The Kolmogorov scale is found to attain the asymptotic state over a shorter axial distance than does the Taylor scale. This suggests that the extent of influence of varying the boundary conditions on the large-scale flow is stronger than that on the small-scale turbulence. |
Keywords | plane jet; small-scale turbulence; effect of sidewalls |
ANZSRC Field of Research 2020 | 401213. Turbulent flows |
401299. Fluid mechanics and thermal engineering not elsewhere classified | |
490199. Applied mathematics not elsewhere classified | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Science and Technology Beijing, China |
Peking University, China | |
School of Agricultural, Computational and Environmental Sciences | |
University of Adelaide | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q27zv/influence-of-sidewalls-on-the-centerline-small-scale-turbulence-of-a-turbulent-high-aspect-ratio-rectangular-jet
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