Nonstationary, three-dimensional aspects of flow around circular cylinder at critical Reynolds numbers
Ying Ju Lin, Jiun Jih Miau, Jung Kuo Tu, Hsing Wen Tsai
Department of Aeronautics and Astronautics
International Bachelor Degree Program on Energy
Nonstationary three-dimensional aspects of flow around a smooth circular cylinder at Reynolds numbers of 3:4-3:9 × 105 were examined with pressure measurements on the cylinder over a spanwise region of two diameters of the cylinder, and a hot-wire probe fixed in the near-wake region. The real-time signals measured showed that the flow behaviors were critically affected by the presence of separation bubble, which could be seen intermittently within a limited spanwise extent on the cylinder. Further, it is noted that physical interpretations based on the time-mean measurement results could be misleading. Rather, in this study a nonstationary data analysis technique was introduced to resolve the vortex shedding frequency in the instantaneous sense. The results obtained lead to further insights into the instantaneous flow characteristics in the critical regime.
AIAA journal
https://doi.org/10.2514/1.J050674
Published - 2011 Sep
10.2514/1.J050674
Dive into the research topics of 'Nonstationary, three-dimensional aspects of flow around circular cylinder at critical Reynolds numbers'. Together they form a unique fingerprint.
Vortex shedding Engineering & Materials Science 100%
Circular cylinders Engineering & Materials Science 94%
Pressure measurement Engineering & Materials Science 93%
Reynolds number Engineering & Materials Science 72%
Lin, Y. J., Miau, J. J., Tu, J. K., & Tsai, H. W. (2011). Nonstationary, three-dimensional aspects of flow around circular cylinder at critical Reynolds numbers. AIAA journal, 49(9), 1857-1870. https://doi.org/10.2514/1.J050674
Lin, Ying Ju ; Miau, Jiun Jih ; Tu, Jung Kuo ; Tsai, Hsing Wen. / Nonstationary, three-dimensional aspects of flow around circular cylinder at critical Reynolds numbers. In: AIAA journal. 2011 ; Vol. 49, No. 9. pp. 1857-1870.
@article{d3c91d5cdd724bb19b38011240068088,
title = "Nonstationary, three-dimensional aspects of flow around circular cylinder at critical Reynolds numbers",
abstract = "Nonstationary three-dimensional aspects of flow around a smooth circular cylinder at Reynolds numbers of 3:4-3:9 × 105 were examined with pressure measurements on the cylinder over a spanwise region of two diameters of the cylinder, and a hot-wire probe fixed in the near-wake region. The real-time signals measured showed that the flow behaviors were critically affected by the presence of separation bubble, which could be seen intermittently within a limited spanwise extent on the cylinder. Further, it is noted that physical interpretations based on the time-mean measurement results could be misleading. Rather, in this study a nonstationary data analysis technique was introduced to resolve the vortex shedding frequency in the instantaneous sense. The results obtained lead to further insights into the instantaneous flow characteristics in the critical regime.",
author = "Lin, {Ying Ju} and Miau, {Jiun Jih} and Tu, {Jung Kuo} and Tsai, {Hsing Wen}",
note = "Funding Information: The support of ABRI (Architecture and Building Research Institute), Ministry of Interiors, Taiwan, for the wind-tunnel operation and the funding support of National Science Council, Taiwan, under contract number 98-2923-E-006-001-MY3, are very much appreciated. The corresponding author (J. J. M.) would like to thank C. H. Fang and M. C. Chen for their efforts of revising the figures and conducting the wind-tunnel experiment with the accelerometers.",
doi = "10.2514/1.J050674",
journal = "AIAA Journal",
publisher = "American Institute of Aeronautics and Astronautics Inc. (AIAA)",
Lin, YJ, Miau, JJ, Tu, JK & Tsai, HW 2011, 'Nonstationary, three-dimensional aspects of flow around circular cylinder at critical Reynolds numbers', AIAA journal, vol. 49, no. 9, pp. 1857-1870. https://doi.org/10.2514/1.J050674
Nonstationary, three-dimensional aspects of flow around circular cylinder at critical Reynolds numbers. / Lin, Ying Ju; Miau, Jiun Jih; Tu, Jung Kuo; Tsai, Hsing Wen.
In: AIAA journal, Vol. 49, No. 9, 09.2011, p. 1857-1870.
T1 - Nonstationary, three-dimensional aspects of flow around circular cylinder at critical Reynolds numbers
AU - Lin, Ying Ju
AU - Miau, Jiun Jih
AU - Tu, Jung Kuo
AU - Tsai, Hsing Wen
N1 - Funding Information: The support of ABRI (Architecture and Building Research Institute), Ministry of Interiors, Taiwan, for the wind-tunnel operation and the funding support of National Science Council, Taiwan, under contract number 98-2923-E-006-001-MY3, are very much appreciated. The corresponding author (J. J. M.) would like to thank C. H. Fang and M. C. Chen for their efforts of revising the figures and conducting the wind-tunnel experiment with the accelerometers.
N2 - Nonstationary three-dimensional aspects of flow around a smooth circular cylinder at Reynolds numbers of 3:4-3:9 × 105 were examined with pressure measurements on the cylinder over a spanwise region of two diameters of the cylinder, and a hot-wire probe fixed in the near-wake region. The real-time signals measured showed that the flow behaviors were critically affected by the presence of separation bubble, which could be seen intermittently within a limited spanwise extent on the cylinder. Further, it is noted that physical interpretations based on the time-mean measurement results could be misleading. Rather, in this study a nonstationary data analysis technique was introduced to resolve the vortex shedding frequency in the instantaneous sense. The results obtained lead to further insights into the instantaneous flow characteristics in the critical regime.
AB - Nonstationary three-dimensional aspects of flow around a smooth circular cylinder at Reynolds numbers of 3:4-3:9 × 105 were examined with pressure measurements on the cylinder over a spanwise region of two diameters of the cylinder, and a hot-wire probe fixed in the near-wake region. The real-time signals measured showed that the flow behaviors were critically affected by the presence of separation bubble, which could be seen intermittently within a limited spanwise extent on the cylinder. Further, it is noted that physical interpretations based on the time-mean measurement results could be misleading. Rather, in this study a nonstationary data analysis technique was introduced to resolve the vortex shedding frequency in the instantaneous sense. The results obtained lead to further insights into the instantaneous flow characteristics in the critical regime.
U2 - 10.2514/1.J050674
DO - 10.2514/1.J050674
JO - AIAA Journal
JF - AIAA Journal
Lin YJ, Miau JJ, Tu JK, Tsai HW. Nonstationary, three-dimensional aspects of flow around circular cylinder at critical Reynolds numbers. AIAA journal. 2011 Sep;49(9):1857-1870. https://doi.org/10.2514/1.J050674