One-dimensional turbulence (ODT) is an efficient stochastic methodology for turbulent flow simulation with dimensionality reduction. In this study, the conservative compressible ODT model is further developed and applied to address the challenge of accurately and economically modeling high-Reynolds-number wall-bounded compressible turbulent flows. The prohibitively costly direct numerical simulation (DNS) of multiscale motions for fully developed compressible turbulent channel flows is replaced by a much more economical simulation using the conservative compressible ODT model. The quantitative accuracy in capturing the main turbulent features, including the first-order mean statistics and the second-order and third-order turbulent fluctuation statistics, is verified by comparing the ODT results with different canonical DNS results at Mab = 0.5, 1.5, and 3.0. With its accuracy tested, the proposed ODT model is employed to capture the turbulent features of fully developed channel flows at Reynolds numbers widely ranging from 6000 to 60 000. The proposed ODT model reproduces Reynolds number effects in turbulent fluctuation statistics at all three Mach numbers mentioned above. Furthermore, considering the correspondence between the statistical effect of multiscale eddy events stochastically sampled in ODT and the effect of actual multiscale turbulent motions, a mechanism for Reynolds number effects is revealed by analyzing interactions between the multiscale eddy events from the ODT perspective. Evidence shows that the large-eddy motions in the outer region, rather than the small ones in the inner region, contribute to the Reynolds number effects when all these motions are plotted in inner-scaled units.
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June 2022
Research Article|
June 09 2022
Conservative compressible one-dimensional turbulence formulation and application to high-Reynolds-number compressible turbulent channel flows Available to Purchase
Chongpei Chen (陈崇沛)
;
Chongpei Chen (陈崇沛)
1
Science and Technology on Scramjet Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology
, Hunan Changsha 410073, China
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Jianhan Liang (梁剑寒)
;
Jianhan Liang (梁剑寒)
a)
1
Science and Technology on Scramjet Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology
, Hunan Changsha 410073, China
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Tianyun Gao (高天运)
;
Tianyun Gao (高天运)
a)
1
Science and Technology on Scramjet Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology
, Hunan Changsha 410073, China
2
International Studies College, National University of Defense Technology
, Jiangsu Nanjing 210039, China
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Xiaoshuai Wu (吴晓帅);
Xiaoshuai Wu (吴晓帅)
1
Science and Technology on Scramjet Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology
, Hunan Changsha 410073, China
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Wandong Zhao (赵万东);
Wandong Zhao (赵万东)
1
Science and Technology on Scramjet Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology
, Hunan Changsha 410073, China
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Lin Zhang (张林)
Lin Zhang (张林)
1
Science and Technology on Scramjet Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology
, Hunan Changsha 410073, China
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Xiaoshuai Wu (吴晓帅)
1
Wandong Zhao (赵万东)
1
1
Science and Technology on Scramjet Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology
, Hunan Changsha 410073, China
2
International Studies College, National University of Defense Technology
, Jiangsu Nanjing 210039, China
Physics of Fluids 34, 065121 (2022)
Article history
Received:
March 30 2022
Accepted:
May 21 2022
Citation
Chongpei Chen, Jianhan Liang, Tianyun Gao, Xiaoshuai Wu, Wandong Zhao, Lin Zhang; Conservative compressible one-dimensional turbulence formulation and application to high-Reynolds-number compressible turbulent channel flows. Physics of Fluids 1 June 2022; 34 (6): 065121. https://doi.org/10.1063/5.0093782
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